Injection mold for automobile lamp injection molding machine

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold for an automobile lamp injection molding machine, which comprises an upper mold body and a lower mold body, a male mold is fixedly arranged in the lower mold body, and an ejector rod component and a first reset component for driving the top surface of the ejector rod component to be flush with the top surface of the male mold are arranged in the male mold. A base is arranged at the bottom end of the lower die body, one end of the ejector rod assembly penetrates through the male die and the base and extends into the base, a driving assembly and a guide assembly are movably arranged in the base, a push plate is movably arranged at the top end of the lower die body, a first through hole is formed in the center of the push plate, and a connecting column is arranged at the top end of the driving assembly. The top end of the connecting column penetrates through the base and the lower mold body and is fixedly connected with the push plate, and a second reset assembly is arranged between the driving assembly and the bottom end in the base, the part is automatically and completely ejected away from the mold bodies by utilizing the mold closing and separating force of the upper mold body and the lower mold body, the demolding effect is good, the part is not prone to being damaged, and an additional driving system is not needed.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, specifically an injection mold for automotive headlight injection molding machines. Background Technology

[0002] Vehicle lights are tools for illuminating vehicles at night and for issuing various vehicle driving signals. They are usually formed by injection molding machines into injection molds. After injection molding, the parts need to be separated from the mold to form a demolding process. However, most existing molds use manual demolding or use cylinder-driven ejector rods to separate the parts from the mold. The former is time-consuming and labor-intensive, and the parts are easily damaged by human force. The design of cylinders and hydraulic cylinders requires additional gas delivery systems and hydraulic oil delivery, which increases the practical cost of the mold and the difficulty of its wiring. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an injection mold for an automotive headlight injection molding machine that addresses the above-mentioned defects by utilizing the force of the upper and lower mold bodies closing and opening to completely eject the part from the mold body, resulting in good demolding effect, less damage to the part, and no need for an additional drive system.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: An injection mold for an automotive headlight injection molding machine includes an upper mold body and a lower mold body disposed below the upper mold body. A punch is fixedly disposed inside the lower mold body, and the top end of the punch extends to the top end of the lower mold body. An ejector rod assembly is disposed inside the punch, and a first reset assembly is disposed to drive the top surface of the ejector rod assembly to be flush with the top surface of the punch. A base is disposed at the bottom end of the lower mold body. One end of the ejector rod assembly passes through the punch and extends into the base. A driving assembly is movably disposed inside the base, and a guide assembly is disposed to guide and limit the movement direction of the driving assembly. A push plate is movably disposed at the top end of the lower mold body. A first through hole matching the punch is opened at the center of the push plate. A connecting post is disposed at the top end of the driving assembly. The top end of the connecting post passes through the base and the lower mold body and is fixedly connected to the push plate. A second reset assembly is disposed between the driving assembly and the bottom end inside the base.

[0005] Furthermore, the bottom end of the upper mold body is provided with a groove, the top end of the punch extends into the groove, and the top end of the punch is higher than the upper surface of the push plate.

[0006] Furthermore, the ejector assembly includes a receiving groove, a first connecting hole, a first sliding groove, a second sliding groove, a second connecting hole, an ejector block, and a push rod. The receiving groove is located at the center of the top of the punch. The first connecting hole is located at the bottom of the receiving groove. The first sliding groove is located at the bottom of the first connecting hole. The second sliding groove is located at the top of the base and communicates with the first sliding groove. The second connecting hole is located at the bottom of the second sliding groove and communicates with the interior of the base. The ejector block is located inside the receiving groove. The push rod is located at the bottom of the ejector block, and the bottom of the push rod passes through the first connecting hole, the first sliding groove, the second sliding groove, and the second connecting hole, extending into the interior of the base.

[0007] Furthermore, the first reset assembly includes a first slider and a first spring. The first slider is disposed on a push rod inside the second slide groove, and the first spring is sleeved on the push rod inside the first slide groove and the second slide groove.

[0008] Furthermore, the driving assembly includes a first driving block, a second driving block, a third sliding groove, and a second slider. The second driving block is disposed at the bottom end of the first driving block. The bottom end of the connecting column is fixedly connected to one side of the first driving block. The third sliding groove is opened on the upper surface of the first driving block away from the connecting column. The second slider is slidably disposed on the third sliding groove. A driving inclined surface is provided on the side of the second slider near the push rod.

[0009] Furthermore, the guide assembly includes a guide rod, a second through hole, a first clearance hole, and a second clearance hole. The guide rod is inclinedly disposed on the side of the top of the base away from the connecting column. The second through hole is inclinedly disposed on the second slider. The first clearance hole is opened inside the third slide groove. The second clearance hole is opened inside the second driving block and communicates with the first clearance hole. The bottom end of the guide rod passes through the second through hole and the first clearance hole and extends into the second clearance hole.

[0010] Furthermore, the second reset assembly includes a plurality of upper mounting plates disposed at the bottom end of the second drive block, a plurality of lower mounting plates disposed at the bottom end inside the base, a telescopic rod disposed between the upper mounting plates and the lower mounting plates, and a second spring sleeved on the outer surface of the telescopic rod.

[0011] The beneficial effects of this utility model are:

[0012] This invention utilizes a combination of a punch, ejector assembly, first reset assembly, base, drive assembly, guide assembly, push plate, first through hole, connecting column, and second reset assembly. When the upper and lower mold bodies are closed, the upper mold body pushes the push plate downwards, causing it to move. The punch passes through the first through hole, and the push plate abuts against the upper surface of the lower mold body, driving the connecting column and drive assembly downwards. This pressures the second reset assembly, causing it to elastically deform. The ejector assembly, receiving the force from the first reset assembly, is positioned inside the punch. This arrangement allows the upper and lower mold bodies to... When the parts separate, the squeezing force disappears, the second reset component resets, and drives the drive component to move upward, driving the connecting column and push plate to push up the edge of the part. At the same time, the drive component drives the ejector component to move upward, pushing up the middle of the part and squeezing the first reset component, causing it to undergo elastic deformation. Their cooperation can completely eject the part from the lower mold body. Moreover, by using the force of the upper and lower mold bodies closing and opening, the part is completely ejected from the mold body by itself. The demolding effect is good, and demolding can be performed from multiple positions at the same time. It is not easy to damage the part, and no additional drive system is required. Attached Figure Description

[0013] The foregoing and other objects, features and advantages of this invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0014] Figure 1 This is a front sectional view of the present invention.

[0015] Figure 2 for Figure 1 An enlarged schematic diagram of the structure at point A.

[0016] The components are as follows: 1. Upper mold body; 101. Groove; 2. Lower mold body; 3. Punch; 4. Base; 5. Push plate; 6. Connecting column; 701. Receiving groove; 702. First connecting hole; 703. First sliding groove; 704. Second sliding groove; 705. Second connecting hole; 706. Top block; 707. Push rod; 801. First slider; 802. First spring; 901. First driving block; 902. Second driving block; 903. Third sliding groove; 904. Second slider; 905. Driving inclined surface; 1001. Guide rod; 1002. Second through hole; 1003. First clearance hole; 1004. Second clearance hole; 1101. Upper mounting plate; 1102. Lower mounting plate; 1103. Telescopic rod; 1104. Second spring. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Reference Figure 1-2As shown, the injection mold for an automotive headlight injection molding machine includes an upper mold body 1 and a lower mold body 2 located below the upper mold body 1. A punch 3 is fixedly installed inside the lower mold body 2, with the top end of the punch 3 extending to the top end of the lower mold body 2. An ejector pin assembly is installed inside the punch 3, as well as a first reset assembly that drives the top surface of the ejector pin assembly to be flush with the top surface of the punch 3. When the upper and lower mold bodies are closed, the ejector pin assembly is located inside the punch 3 and flush with the top surface of the punch 3 under the force of the first reset assembly. When the upper mold body 1 and the lower mold body 2 are separated, the ejector pin assembly is driven upward by the drive assembly and compresses the first reset assembly, causing it to undergo elastic deformation.

[0019] A base 4 is provided at the bottom of the lower mold body 2. One end of the ejector pin assembly passes through the punch 3 and extends into the base 4. A driving assembly and a guide assembly for guiding and limiting the movement direction of the driving assembly are movably provided inside the base 4. A push plate 5 is movably provided at the top of the lower mold body 2. A first through hole 501 matching the punch 3 is opened at the center of the push plate 5. The first through hole 501 prevents the push plate 5 from interfering with the punch 3 when it moves up and down. A connecting post 6 is provided at the top of the driving assembly. The top of the connecting post 6 passes through the base 4 and the lower mold body 2 and is fixedly connected to the push plate 5. A second reset assembly is provided between the driving assembly and the bottom of the base 4. When the upper and lower mold bodies are closed, the upper mold body 2 pushes the push plate 5 first, causing the push plate 5 to move downward. The punch 3 passes through the first through hole 501, and the push plate... 5 abuts against the upper surface of the lower mold body 2 and drives the connecting column 6 to move downward, driving the drive assembly to press against the second reset assembly along the guide assembly, causing it to undergo elastic deformation. When the upper mold body 1 and the lower mold body 2 separate, the pressing force disappears, the second reset assembly resets, the drive assembly resets, moves upward, and pushes the ejector assembly. At the same time, the connecting column 6 and the push plate move upward together, pushing up the edge of the part. The ejector assembly moves upward to push up the middle of the part and press against the first reset assembly, causing it to undergo elastic deformation. Their cooperation can completely eject the part from the lower mold body 2. Moreover, by utilizing the force of the upper and lower mold bodies closing and separating, the part is completely ejected from the mold body by itself. The demolding effect is good, and demolding can be performed simultaneously from multiple positions. It is not easy to damage the part, and no additional drive system is required.

[0020] Preferably, the bottom end of the upper mold body 1 is provided with a groove 101, the top end of the punch 3 extends into the groove 101, the top end of the punch 3 is higher than the upper surface of the push plate 5, and the punch 3, the push plate 5, the ejection assembly and the groove 101 cooperate with each other to form a molding cavity.

[0021] Preferably, the ejector assembly includes a receiving groove 701, a first connecting hole 702, a first sliding groove 703, a second sliding groove 704, a second connecting hole 705, an ejector block 706, and a push rod 707. The receiving groove 701 is located at the center of the top of the punch 3. The first connecting hole 702 is located at the bottom of the receiving groove 701. The first sliding groove 703 is located at the bottom of the first connecting hole 702. The second sliding groove 704 is located at the top of the base 4 and communicates with the first sliding groove 703. The second connecting hole 705 is located at the bottom of the second sliding groove 704 and communicates with the interior of the base 4. The top block 706 is disposed inside the receiving groove 701, and the push rod 707 is disposed at the bottom end of the top block 706. The bottom end of the push rod 707 passes through the first connecting hole 702, the first sliding groove 703, the second sliding groove 704, and the second connecting hole 705, extending into the base 4. The receiving groove 701, the first connecting hole 702, the first sliding groove 703, the second sliding groove 704, and the second connecting hole 705 are on the same central axis and are interconnected. The bottom end of the push rod 707 extends to the driving component and is close to the driving inclined surface 905 of the second slider 904.

[0022] Preferably, the first reset assembly includes a first slider 801 and a first spring 802. The first slider 801 is disposed on the push rod 707 inside the second slide groove 704. The first spring 802 is sleeved on the push rod 707 inside the first slide groove 703 and the second slide groove 704. The first slider 801 is slidably connected to the first slide groove 703 and the second slide groove 704. One end of the first spring 802 abuts against the first slider 801, and the other end abuts against the top end inside the first slide groove 703. When the upper and lower mold bodies separate, the drive assembly pushes the push rod 707, causing the first slider 801 to move upward and compressing the first spring 802, causing the top block 706 to move upward. When the upper and lower mold bodies close, the push plate 5 and the connecting column 6 drive the drive assembly to move downward. The force pushing the push rod 707 disappears, the first spring 802 resets and rebounds, causing the first slider 801 to move downward and the top block 706 to move into the receiving groove 701.

[0023] Preferably, the driving component includes a first driving block 901, a second driving block 902, a third sliding groove 903, and a second slider 904. The second driving block 902 is disposed at the bottom end of the first driving block 901, and the bottom end of the connecting post 6 is fixedly connected to one side of the first driving block 901. The third sliding groove 903 is opened on the upper surface of the first driving block 901 away from the connecting post 6. The second slider 904 is slidably disposed on the third sliding groove 903. A driving inclined surface 905 is provided on the side of the second slider 904 near the push rod 707. The second slider 904 approaches the push rod 707 along the third sliding groove 903 as limited by the guide component, and the driving inclined surface 905 pushes the push rod 707, causing the push rod 707 to move upward.

[0024] Preferably, the guide assembly includes a guide rod 1001, a second through hole 1002, a first clearance hole 1003, and a second clearance hole 1004. The guide rod 1001 is inclinedly disposed inside the base 4 on the side away from the connecting column 6 at the top end. The second through hole 1002 is inclinedly disposed on the second slider 904. The first clearance hole 1003 is formed inside the third slide groove 903. The second clearance hole 1004 is formed inside the second driving block 902 and communicates with the first clearance hole 1003. The bottom end of 001 passes through the second through hole 1002 and the first clearance hole 1003, extending into the interior of the second clearance hole 1004. When the first driving block 901 and the second driving block 902 move up and down, the first clearance hole 1003 and the second clearance hole 1004 prevent them from interfering with the inclined guide rod 1001. The second slider 904 can move horizontally along the guide rod 1001 and the third slide groove 903 through the second through hole 1002, so that it moves closer to or away from the push rod 707.

[0025] Preferably, the second reset assembly includes a plurality of upper mounting plates 1101 disposed at the bottom end of the second driving block 902, a plurality of lower mounting plates 1102 disposed at the bottom end inside the base 4, a telescopic rod 1103 disposed between the upper mounting plates 1101 and the lower mounting plates 1102, and a second spring 1104 sleeved on the outer surface of the telescopic rod 1103. When the mold is closed, the upper mounting plates 1101 move downward toward the lower mounting plates 1102, causing the telescopic rod 1103 to contract and compress the second spring 1104, causing it to undergo elastic deformation.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An injection mold for an automotive headlight injection molding machine, comprising an upper mold body (1) and a lower mold body (2) disposed below the upper mold body (1), characterized in that: A punch (3) is fixedly installed inside the lower mold body (2). The top end of the punch (3) extends to the top end of the lower mold body (2). A push rod assembly is installed inside the punch (3), and a first reset assembly is provided to drive the top surface of the push rod assembly to be flush with the top surface of the punch (3). A base (4) is provided at the bottom end of the lower mold body (2). One end of the push rod assembly extends through the punch (3) and the base (4) into the interior of the base (4). A driving assembly is movably installed inside the base (4) to... The guide component guides and limits the movement direction of the driving component. The top of the lower mold body (2) is movably provided with a push plate (5). The center of the push plate (5) is provided with a first through hole (501) that matches the punch (3). The top of the driving component is provided with a connecting post (6). The top of the connecting post (6) passes through the base (4) and the lower mold body (2) and is fixedly connected to the push plate (5). A second reset component is provided between the driving component and the bottom of the base (4).

2. The injection mold for automotive headlight injection molding machines according to claim 1, characterized in that: The bottom end of the upper mold body (1) is provided with a groove (101), the top end of the punch (3) extends into the groove (101), and the top end of the punch (3) is higher than the upper surface of the push plate (5).

3. The injection mold for an automotive headlight injection molding machine according to claim 1, characterized in that: The push rod assembly includes a receiving groove (701), a first connecting hole (702), a first sliding groove (703), a second sliding groove (704), a second connecting hole (705), a push block (706), and a push rod (707). The receiving groove (701) is located at the center of the top of the punch (3). The first connecting hole (702) is located at the bottom of the receiving groove (701). The first sliding groove (703) is located at the bottom of the first connecting hole (702). The second sliding groove (704) is located at the base (705). 4) The top end is connected to the first slide groove (703). The second connecting hole (705) is opened at the bottom end of the second slide groove (704) and is connected to the inside of the base (4). The top block (706) is set inside the receiving groove (701). The push rod (707) is set at the bottom end of the top block (706), and the bottom end of the push rod (707) passes through the first connecting hole (702), the first slide groove (703), the second slide groove (704), and the second connecting hole (705) and extends into the inside of the base (4).

4. The injection mold for an automotive headlight injection molding machine according to claim 3, characterized in that: The first reset assembly includes a first slider (801) and a first spring (802). The first slider (801) is disposed on a push rod (707) inside the second slide groove (704), and the first spring (802) is sleeved on the push rod (707) inside the first slide groove (703) and the second slide groove (704).

5. The injection mold for an automotive headlight injection molding machine according to claim 3, characterized in that: The driving assembly includes a first driving block (901), a second driving block (902), a third sliding groove (903), and a second slider (904). The second driving block (902) is disposed at the bottom end of the first driving block (901). The bottom end of the connecting column (6) is fixedly connected to one side of the first driving block (901). The third sliding groove (903) is opened on the upper surface of the first driving block (901) away from the connecting column (6). The second slider (904) is slidably disposed on the third sliding groove (903). A driving inclined surface (905) is provided on the side of the second slider (904) near the push rod (707).

6. The injection mold for an automotive headlight injection molding machine according to claim 5, characterized in that: The guide assembly includes a guide rod (1001), a second through hole (1002), a first clearance hole (1003), and a second clearance hole (1004). The guide rod (1001) is inclinedly disposed inside the base (4) on the side away from the connecting column (6). The second through hole (1002) is inclinedly disposed on the second slider (904). The first clearance hole (1003) is opened inside the third slide groove (903). The second clearance hole (1004) is opened inside the second driving block (902) and communicates with the first clearance hole (1003). The bottom end of the guide rod (1001) passes through the second through hole (1002) and the first clearance hole (1003) and extends into the second clearance hole (1004).

7. The injection mold for an automotive headlight injection molding machine according to claim 5, characterized in that: The second reset assembly includes a plurality of upper mounting plates (1101) disposed at the bottom end of the second drive block (902), a plurality of lower mounting plates (1102) disposed at the bottom end inside the base (4), a telescopic rod (1103) disposed between the upper mounting plates (1101) and the lower mounting plates (1102), and a second spring (1104) sleeved on the outer surface of the telescopic rod (1103).

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