Injection mold for processing long-light-guide thick-wall optical patterns

Abstract

The utility model belongs to the technical field of molds, and particularly relates to an injection mold for processing long light guide thick-wall optical patterns. The long-light-guide thick-wall decorative lighting frame forming die comprises a long-light-guide thick-wall decorative lighting frame forming lower die and a long-light-guide thick-wall decorative lighting frame forming upper die. According to the utility model, melt flows into the cavity for injection molding, the side abutting positioning part can abut against and position the outer side of the lower molding panel during injection molding, so that the situation that the lower molding panel laterally moves during injection molding is avoided, the injection molding precision is improved, the mold is opened after injection molding is completed, and the production efficiency is improved. The inclined ejection mold opening assembly can be used for carrying out preliminary inclined ejection on the upper forming insert panel, so that enough demolding space is formed between the upper forming insert panel and the lower forming insert panel, then the straight ejection demolding part is used for carrying out large-area ejection on a formed plastic part, and the case clamping condition is avoided during ejection; the normal ejection of the plastic part is not influenced, and meanwhile, the in-mold space is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an injection mold for processing long light guide thick-wall optical patterns. Background Art

[0002] The decorative frame of the headlight is particularly important for the decoration of the car lamp, so there are appearance requirements during production. After the traditional headlight frame is molded by the injection molding machine, the mold is generally ejected by an ejector. Direct ejection is prone to the problem of insufficient demolding space on the one hand, and it is easy to get stuck during ejection on the other hand, and the ejection accuracy is relatively general. Therefore, it is urgent to design an injection mold for processing long light guide thick wall optical patterns that can overcome the above defects.

[0003] In order to overcome the shortcomings of the prior art, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses a production mold for a car lamp frame [application number: 201921792138.4], including a fixed mold, a movable mold, a positioning block, a mold slide, a mold groove, an injection port, an injection channel, a movable mold lifting mechanism, an ejection mechanism, an ejector rod and an ejector frame. The injection port is provided on the top of the movable mold, the injection channel is provided in the movable mold, the mold groove is provided in the middle of the top of the fixed mold, and the mold slide is provided on both sides of the mold groove; the movable mold lifting mechanism is provided in the fixed mold, the cylinder is provided at the bottom of the fixed mold, one end of the movable mold telescopic rod is connected to the cylinder and the other end is connected to the movable mold; the ejection mechanism is provided inside the fixed mold, the bearing plate is connected to the bottom of the fixed mold through the ejection telescopic rod, and the connecting rod and the tilting mechanism connect the bearing plate to the ejection frame. Utility Model Content

[0004] The utility model aims to solve the above problems and provides an injection mold for processing long light guide thick-wall optical patterns.

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

[0006] The invention discloses an injection mold for processing long light guide thick-wall optical patterns, comprising a lower mold for molding a long light guide thick-wall lamp decorative frame and an upper mold for molding a long light guide thick-wall lamp decorative frame. The lower mold for molding the long light guide thick-wall lamp decorative frame is provided with two lower molding panels, and the upper mold for molding the long light guide thick-wall lamp decorative frame is provided with two upper molding panels. The lower molding panels are arranged opposite to the upper molding panels. The lower molding panels are provided with a decorative frame molding lower part, and the upper molding panels are provided with a decorative frame molding upper part. The decorative frame molding lower part corresponds to the decorative frame molding upper part in position and matches in shape. The lower molding panels are provided with an inclined top mold opening component and a straight top demolding component. The inclined top mold opening component and the straight top demolding component are arranged alternately. The lower mold for molding the long light guide thick-wall lamp decorative frame is also provided with a side abutment positioning portion, and the side abutment positioning portion abuts and cooperates with the lower molding panels.

[0007] In the above-mentioned injection mold for processing long optical guide thick-walled optical patterns, the inclined top mold opening assembly includes a plurality of left inclined top blocks and right inclined top blocks arranged in the lower molding panel, and the left inclined top blocks and the right inclined top blocks are respectively abutted and matched with the upper molding panel, and the left inclined top blocks and the right inclined top blocks are staggered.

[0008] In the above-mentioned injection mold for processing long light guide thick-wall optical patterns, a first inclined lift rod is provided below the left inclined lift block, a first inclined lift connecting slide is provided at the bottom of the first inclined lift rod, and the first inclined lift rod and the first inclined lift connecting slide are slidably matched.

[0009] In the above-mentioned injection mold for processing long light guide thick-wall optical patterns, a second inclined lift rod is provided below the right inclined lift block, a second inclined lift connecting slide is provided at the bottom of the second inclined lift rod, and the second inclined lift rod and the second inclined lift connecting slide are slidably matched.

[0010] In the above-mentioned injection mold for processing long light guide thick-wall optical patterns, the straight ejector comprises a plurality of straight ejector rods arranged in the lower molding panel, and the left inclined ejector block and the right inclined ejector block are respectively arranged alternately with the straight ejector rods.

[0011] In the above-mentioned injection mold for processing long light guide thick-walled optical patterns, the side abutment positioning portion includes two side abutment positioning slides arranged on the long light guide thick-walled lamp frame molding lower mold, and the outer side of the lower molding panel abuts against the inner side of the side abutment positioning slides.

[0012] In the above-mentioned injection mold for processing long light guide thick-wall optical patterns, limiting strips are provided on both sides of the side abutment positioning slide, and the side abutment positioning slide is slidably matched with the limiting strips.

[0013] In the above-mentioned injection mold for processing long light guide thick-walled optical patterns, an inlay anti-deflection alignment part is provided between the long light guide thick-walled lamp frame molding lower mold and the long light guide thick-walled lamp frame molding upper mold, and the lower molding inlay is abutted and matched with the inlay anti-deflection alignment part.

[0014] In the above-mentioned injection mold for processing long light guide thick-walled optical patterns, the panel anti-deviation alignment part includes a panel anti-deviation alignment seat arranged between the long light guide thick-walled lamp decorative frame molding lower mold and the long light guide thick-walled lamp decorative frame molding upper mold, and the panel anti-deviation alignment seat is abutted against the inner side of the lower molding panel.

[0015] In the above-mentioned injection mold for processing long light guide thick-wall optical patterns, two mold alignment protrusions are provided on the top of the side-abutment positioning slide.

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

[0017] 1. In the injection molding process of the utility model, the lower mold for molding the long light-conducting thick-walled lamp decorative frame and the upper mold for molding the long light-conducting thick-walled lamp decorative frame are brought close to each other, so that the lower molding panel abuts against the upper molding panel, the molding lower part of the decorative frame cooperates with the molding upper part of the decorative frame to form a complete cavity, and the molten flow enters the cavity for injection molding. During injection molding, the side abutment positioning part can abut and position the outer side of the lower molding panel to avoid the lateral shift of the lower molding panel during injection molding, thereby improving the precision of injection molding. After the injection molding is completed, the mold is opened, and the upper molding panel can be initially inclinedly ejected through the inclined ejection mold opening component, so that sufficient demolding space is formed between the upper molding panel and the lower molding panel, and then the molded plastic part is ejected over a large area through the straight ejection part, and the jamming situation is avoided during ejection. The secondary demolding ejection structure is adopted, which will not affect the normal ejection of the plastic part and save the space in the mold at the same time.

[0018] Other advantages, objectives and features of the present invention will be embodied 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

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a partial structural schematic diagram of the utility model.

[0021] Figure 3 It is a partial structural schematic diagram of the utility model in another direction.

[0022] Figure 4 It is a partial structural schematic diagram of the utility model in another direction.

[0023] In the figure: a lower mold 1 for forming a long light-conducting thick-walled lamp decorative frame, an upper mold 2 for forming a long light-conducting thick-walled lamp decorative frame, a lower molding panel 3, an upper molding panel 4, a lower part of a decorative frame molding 5, an upper part of a decorative frame molding, an inclined top mold opening assembly 7, a straight top demolding component 8, a side abutment positioning portion 9, a left inclined top block 10, a right inclined top block 11, a first inclined top rod 12, a first inclined top connecting slide 13, a second inclined top rod 14, a second inclined top connecting slide 15, a straight top rod 16, a side abutment positioning slide 17, a limiting strip 18, a panel anti-deviation alignment portion 19, a panel anti-deviation alignment seat 20, and a mold alignment protrusion 21. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] like Figure 1-4 As shown, an injection mold for processing long light guide thick-walled optical patterns includes a long light guide thick-walled lamp decorative frame molding lower mold 1 and a long light guide thick-walled lamp decorative frame molding upper mold 2, the long light guide thick-walled lamp decorative frame molding lower mold 1 is provided with two lower molding panels 3, the long light guide thick-walled lamp decorative frame molding upper mold 2 is provided with two upper molding panels 4, the lower molding panels 3 are arranged opposite to the upper molding panels 4, the lower molding panels 3 are provided with a decorative frame molding lower part 5, the upper molding panels 4 are provided with a decorative frame molding upper part, the decorative frame molding lower part 5 corresponds to the position of the decorative frame molding upper part and the shape is matched, the lower molding panel 3 is provided with an inclined top mold opening component 7 and a straight top demolding component 8, the inclined top mold opening component 7 and the straight top demolding component 8 are staggered, and the long light guide thick-walled lamp decorative frame molding lower mold 1 is also provided with a side abutment positioning portion 9, and the side abutment positioning portion 9 is abutted and matched with the lower molding panel 3.

[0026] In this embodiment, during the injection molding process, the long light guide thick wall lamp decorative frame molding lower mold 1 and the long light guide thick wall lamp decorative frame molding upper mold 2 are brought close to each other, so that the lower molding panel 3 is abutted against the upper molding panel 4, and the decorative frame molding lower part 5 is matched with the decorative frame molding upper part to form a complete cavity, and the molten flow enters the cavity for injection molding. During injection molding, the side abutment positioning part 9 can abut and position the outer side of the lower molding panel 3 to avoid the lateral displacement of the lower molding panel 3 during injection molding, thereby improving the injection molding accuracy. After the injection molding is completed, the mold is opened, and the upper molding panel 4 can be initially inclinedly ejected through the inclined ejection mold opening component 7, so that sufficient demolding space is formed between the upper molding panel 4 and the lower molding panel 3, and then the molded plastic part is ejected over a large area through the straight ejection part 8, and the jamming situation is avoided during ejection. The secondary demolding ejection structure is adopted, which will not affect the normal ejection of the plastic part and save the space in the mold at the same time.

[0027] Combination Figure 1-4As shown, the inclined top mold opening assembly 7 includes a plurality of left inclined top blocks 10 and right inclined top blocks 11 arranged in the lower molding panel 3, and the left inclined top blocks 10 and the right inclined top blocks 11 are respectively abutted and matched with the upper molding panel 4, and the left inclined top blocks 10 and the right inclined top blocks 11 are staggered.

[0028] Specifically, after the injection molding is completed, the mold is opened, and the upper molding panel 4 can be initially tilted and ejected by the left tilted ejector block 10 and the right tilted ejector block 11 , so that sufficient demoulding space is formed between the upper molding panel 4 and the lower molding panel 3 .

[0029] A first inclined lift rod 12 is provided below the left inclined lift block 10, and a first inclined lift connecting slide 13 is provided at the bottom of the first inclined lift rod 12. The first inclined lift rod 12 and the first inclined lift connecting slide 13 are slidably matched. A second inclined lift rod 14 is provided below the right inclined lift block 11, and a second inclined lift connecting slide 15 is provided at the bottom of the second inclined lift rod 14. The second inclined lift rod 14 and the second inclined lift connecting slide 15 are slidably matched.

[0030] In this embodiment, the first inclined lift rod 12 cooperates with the first inclined lift connecting slide 13 to move the left inclined lift block 10 , and the second inclined lift rod 14 cooperates with the second inclined lift connecting slide 15 to move the right inclined lift block 11 .

[0031] The straight ejector demoulding member 8 includes a plurality of straight ejector rods 16 disposed in the lower molding panel 3 , and the left inclined ejector block 10 and the right inclined ejector block 11 are respectively arranged alternately with the straight ejector rods 16 .

[0032] In this embodiment, after the upper and lower panels are initially separated, the molded plastic part is ejected over a large area by the straight ejector rod 16 to avoid jamming during ejection.

[0033] Combination Figure 2 As shown, the side abutment positioning portion 9 includes two side abutment positioning slides 17 arranged on the long light guide thick wall lamp frame forming lower mold 1, and the outer side of the lower forming panel 3 is abutted against the inner side of the side abutment positioning slides 17.

[0034] In this embodiment, during the injection molding process, the side abutment positioning slide 17 can abut and position the outer side of the lower molding panel 3 to avoid the lateral movement of the lower molding panel 3 during the injection molding, thereby improving the precision of the injection molding.

[0035] Limiting strips 18 are disposed on both sides of the side-abutting positioning slide 17 , and the side-abutting positioning slide 17 and the limiting strips 18 are slidably matched.

[0036] In this embodiment, the limiting strip 18 can limit the side abutment positioning slide 17 to prevent the side abutment positioning slide 17 from angular deviation during the sliding process.

[0037] Combination Figure 1-2 As shown, a panel anti-deflection alignment portion 19 is provided between the long light guide thick wall lamp frame forming lower mold 1 and the long light guide thick wall lamp frame forming upper mold 2, and the lower molding panel 3 is abutted against the panel anti-deflection alignment portion 19.

[0038] In this embodiment, the panel anti-deflection alignment portion 19 is used to prevent the inner side of the lower molding panel 3 from deflecting.

[0039] Combination Figure 1-2 As shown, the panel anti-deflection alignment portion 19 includes a panel anti-deflection alignment seat 20 arranged between the long light guide thick wall lamp frame forming lower mold 1 and the long light guide thick wall lamp frame forming upper mold 2, and the panel anti-deflection alignment seat 20 abuts against the inner side of the lower molding panel 3.

[0040] In this embodiment, during injection molding, the panel anti-deviation alignment seat 20 is used to prevent the inner side of the lower molding panel 3 from deviating and aligning.

[0041] Combination Figure 1-2 As shown, two mold alignment protrusions 21 are provided on the top of the side positioning slide 17 .

[0042] In this embodiment, the mold alignment protrusion 21 facilitates the accurate alignment of the long light guide thick wall lamp decorative frame forming lower mold 1 and the long light guide thick wall lamp decorative frame forming upper mold 2 during mold closing.

[0043] The working principle of the utility model is:

[0044] During the injection molding process, the lower mold 1 for forming the long light-guide thick-walled lamp decorative frame and the upper mold 2 for forming the long light-guide thick-walled lamp decorative frame are brought close to each other, so that the lower molding panel 3 is abutted against the upper molding panel 4, and the lower molding portion 5 of the decorative frame is matched with the upper molding portion of the decorative frame to form a complete cavity, and the molten flow enters the cavity for injection molding. After the injection molding is completed, the mold is opened, and the upper molding panel 4 can be initially ejected by the left inclined ejector block 10 and the right inclined ejector block 11, so that sufficient demolding space is formed between the upper molding panel 4 and the lower molding panel 3. The first inclined ejector rod 12 cooperates with the first inclined ejector connecting slide 13 to move the left inclined ejector block 10, and the second inclined ejector rod 14 cooperates with the second inclined ejector connecting slide 15 to move the right inclined ejector block 11. After the initial separation of the upper and lower panels is completed, the molded plastic part is ejected over a large area by the straight ejector rod 16 to avoid jamming during ejection.

[0045] During the injection molding process, the side abutment positioning slide 17 can abut against the outer side of the lower molding panel 3 to prevent the lower molding panel 3 from lateral displacement during injection molding, thereby improving the precision of injection molding. The limiting strip 18 can limit the side abutment positioning slide 17 to prevent the side abutment positioning slide 17 from angular deviation during the sliding process. The panel anti-bias alignment seat 20 is used to prevent the inner side of the lower molding panel 3 from being deflected.

[0046] The mold alignment protrusion 21 facilitates accurate alignment of the lower mold 1 for forming the long light guide thick-walled lamp decorative frame and the upper mold 2 for forming the long light guide thick-walled lamp decorative frame during mold closing.

[0047] 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 in similar ways without departing from the spirit of the present invention.

[0048] Although this article uses the terms such as the lower mold 1 for forming a long light guide thick wall lamp frame, the upper mold 2 for forming a long light guide thick wall lamp frame, the lower molded panel 3, the upper molded panel 4, the lower molded frame 5, the upper molded frame, the inclined top mold assembly 7, the straight top demoulding member 8, the side abutment positioning portion 9, the left inclined top block 10, the right inclined top block 11, the first inclined top rod 12, the first inclined top connecting slide 13, the second inclined top rod 14, the second inclined top connecting slide 15, the straight top rod 16, the side abutment positioning slide 17, the limit strip 18, the panel anti-deviation alignment portion 19, the panel anti-deviation alignment seat 20, and the mold alignment protrusion 21, 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 utility model, and interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An injection mold for processing a long light guide thick-walled optical pattern, comprising a lower mold (1) for molding a long light guide thick-walled lamp decorative frame and an upper mold (2) for molding a long light guide thick-walled lamp decorative frame, characterized in that: The long light-conducting thick-walled lamp decorative frame molding lower mold (1) is provided with two lower molding panels (3), and the long light-conducting thick-walled lamp decorative frame molding upper mold (2) is provided with two upper molding panels (4), the lower molding panels (3) and the upper molding panels (4) are arranged opposite to each other, the lower molding panels (3) are provided with a decorative frame molding lower part (5), and the upper molding panels (4) are provided with a decorative frame molding upper part, the decorative frame molding lower part (5) corresponds to the decorative frame molding upper part in position and matches in shape, the lower molding panels (3) are provided with an inclined top mold opening component (7) and a straight top demolding component (8), the inclined top mold opening component (7) and the straight top demolding component (8) are arranged in an alternating manner, and the long light-conducting thick-walled lamp decorative frame molding lower mold (1) is also provided with a side abutment positioning part (9), and the side abutment positioning part (9) is in abutment with the lower molding panels (3).

2. The injection mold for processing long light guide thick-walled optical patterns according to claim 1, characterized in that: The inclined top mold opening assembly (7) comprises a plurality of left inclined top blocks (10) and right inclined top blocks (11) arranged in the lower molding panel (3), the left inclined top blocks (10) and the right inclined top blocks (11) respectively abutting against the upper molding panel (4), and the left inclined top blocks (10) and the right inclined top blocks (11) are arranged alternately.

3. The injection mold for processing long light guide thick-walled optical patterns according to claim 2, characterized in that: A first inclined lift rod (12) is provided below the left inclined lift block (10), a first inclined lift connecting slide seat (13) is provided at the bottom of the first inclined lift rod (12), and the first inclined lift rod (12) and the first inclined lift connecting slide seat (13) are slidably matched.

4. The injection mold for processing long light guide thick-walled optical patterns according to claim 3, characterized in that: A second inclined lift rod (14) is provided below the right inclined lift block (11), a second inclined lift connecting slide seat (15) is provided at the bottom of the second inclined lift rod (14), and the second inclined lift rod (14) and the second inclined lift connecting slide seat (15) are slidably matched.

5. The injection mold for processing long light guide thick-walled optical patterns according to claim 4, characterized in that: The straight ejector (8) comprises a plurality of straight ejector rods (16) arranged in the lower molding panel (3), and the left inclined ejector block (10) and the right inclined ejector block (11) are respectively arranged alternately with the straight ejector rods (16).

6. The injection mold for processing long light guide thick-walled optical patterns according to claim 5, characterized in that: The side abutment positioning portion (9) comprises two side abutment positioning slides (17) arranged on the lower mold (1) for forming the long light-conducting thick-walled lamp decorative frame, and the outer side of the lower molding panel (3) abuts against the inner side of the side abutment positioning slides (17).

7. The injection mold for processing long light guide thick-walled optical patterns according to claim 6, characterized in that: Limiting strips (18) are provided on both sides of the side-abutting positioning slide (17), and the side-abutting positioning slide (17) and the limiting strips (18) are slidably matched.

8. The injection mold for processing long light guide thick-walled optical patterns according to claim 7, characterized in that: An inlay plate anti-deflection alignment portion (19) is provided between the long light-conducting thick-walled lamp frame forming lower die (1) and the long light-conducting thick-walled lamp frame forming upper die (2), and the lower forming inlay plate (3) is abutted against and matched with the inlay plate anti-deflection alignment portion (19).

9. The injection mold for processing long light guide thick-walled optical patterns according to claim 8, characterized in that: The panel anti-deflection alignment portion (19) comprises a panel anti-deflection alignment seat (20) arranged between a long light-conducting thick-walled lamp frame forming lower mold (1) and a long light-conducting thick-walled lamp frame forming upper mold (2), and the panel anti-deflection alignment seat (20) abuts against the inner side of the lower molded panel (3).

10. The injection mold for processing long light guide thick-walled optical patterns according to claim 9, characterized in that: Two mold-matching protrusions (21) are provided on the top of the side-affecting positioning slide (17).

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