High-efficiency demolding injection mold for automobile lampshade production

Abstract

This invention relates to a high-efficiency demolding injection mold for automotive lamp cover production, belonging to the field of mold technology. It includes a horizontally distributed moving mold mechanism and a fixed mold mechanism. The moving mold mechanism includes a movable base and a module fixedly disposed on the side of the movable base near the fixed mold mechanism. The movable base is connected to a moving system, which enables the movable base to move along the arrangement direction of the moving mold mechanism and the fixed mold mechanism. A first injection hole is provided through the movable base, and a second injection hole is provided through the module. During lamp cover demolding, the lamp cover is ejected from the mold groove by an ejector rod, and then the air cover on the protrusion is detached by a push rod, achieving automatic demolding without manual demolding, thus improving safety. Furthermore, during demolding, air in the third through hole can be pushed into the mold groove and then discharged. Under the action of airflow, impurities in the mold groove are easily blown away, achieving automatic cleaning of the mold groove and avoiding subsequent manual air blowing for cleaning, thus improving convenience.

Description

Technical Field

[0001] This invention relates to a high-efficiency demolding injection mold for the production of automotive lamp covers, belonging to the field of mold technology. Background Technology

[0002] Vehicle lights refer to the lights on a vehicle, which are used to illuminate the road at night and to signal various driving conditions. The installation of vehicle lights requires light assemblies, which are manufactured using a combination of molds and injection molding processes.

[0003] Chinese utility model patent CN213733240U discloses a car lamp mold with external cooling circulation pipes, including a fixed mold base and a movable mold base. The fixed mold base is installed parallel to the right side of the movable mold base. Guide rail holes are provided inside the fixed mold base near its four corners, and guide rail posts are provided on the outer wall of the right end of the movable mold base near its four corners. A novel position correction device is added to the inner walls of the two mold bases on opposite sides of the mold base. This novel position correction device can correct the position when the movable mold base moves to the right and mates with the fixed mold base, ensuring accurate mating. Furthermore, after mating, the position correction device provides reinforcement, preventing sagging between the two mold bases. However, in the prior art, demolding is usually done manually after material injection molding, which not only affects work efficiency but also poses certain safety hazards.

[0004] Therefore, there is a need for a high-efficiency demolding injection mold for the production of automotive lamp covers, which can achieve automatic demolding and improve safety. Summary of the Invention

[0005] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art and provide a high-efficiency demolding injection mold for the production of automotive lamp covers that enables automatic demolding and improves safety.

[0006] The technical solution adopted by the present invention to solve the above problems is as follows: a high-efficiency demolding injection mold for the production of automotive lamp covers, comprising a horizontally distributed moving mold mechanism and a fixed mold mechanism. The moving mold mechanism includes a movable seat and a module fixedly disposed on the side of the movable seat near the fixed mold mechanism. The movable seat is connected to a moving system, and the moving system enables the movable seat to move along the arrangement direction of the moving mold mechanism and the fixed mold mechanism. A first injection hole is provided through the movable seat, and a second injection hole is provided through the module. The first and second injection holes are both arranged along the arrangement direction of the moving mold mechanism and the fixed mold mechanism, and the first and second injection holes are connected. The module has an annular groove on the side near the movable seat. Two air holes are provided through the movable seat and are connected to the groove. The two air holes are symmetrically arranged about the second injection hole. An air pipe is fixedly inserted into the air hole. One end of the air pipe extends to the side of the movable seat away from the fixed mold mechanism. One end of the air pipe away from the fixed mold mechanism is connected to the air supply system. The moving mold mechanism also includes a pusher assembly, which is used to push down the injection-molded lampshade on the module; The fixed mold mechanism includes a fixed base and a movable plate. A fixed connecting frame is provided on the side of the fixed base away from the movable base. The other side of the fixed base is sealed and fitted to the movable base. A mold groove is provided on the side of the fixed base near the movable base, and the module is inserted into the mold groove. A third through hole is provided on the side of the fixed base away from the movable base, and the third through hole communicates with the mold groove. A push rod is inserted into the third through hole. The push rod slides and is sealed to the inner wall of the third through hole along the arrangement direction of the moving mold mechanism and the fixed mold mechanism. The end of the push rod near the movable base is on a smooth surface of the inner wall of the mold groove. The movable plate is located on the side of the push rod away from the movable base, and the push rod is fixedly mounted on the movable plate. A transmission rod is provided on the side of the plate near the movable seat. The transmission rod is parallel to the arrangement direction of the moving mold mechanism and the fixed mold mechanism. A fourth through hole is provided on the fixed seat. An extrusion rod is fixedly provided on the side of the movable seat near the fixed seat. The extrusion rod is coaxially arranged with the transmission rod. The end of the extrusion rod away from the movable seat is slidably inserted into the fourth through hole. The end of the transmission rod near the movable seat is movably inserted into the fourth through hole. The end of the extrusion rod away from the movable seat and the end of the transmission rod near the movable seat abut against each other. A second spring is sleeved on the transmission rod. The second spring is located between the movable plate and the fixed seat. The two ends of the second spring are respectively connected to the movable plate and the fixed seat. The second spring is in a stretched state.

[0007] Preferably, the pusher assembly includes a push ring and multiple push rods, which are evenly distributed circumferentially around the module. The push ring is located on the side of the movable seat away from the fixed mold mechanism. A gap is provided between the push ring and the movable seat. A first through hole is provided on the movable seat along the arrangement direction of the moving mold mechanism and the fixed mold mechanism. The number of the first through holes is the same as the number of push rods and they correspond one-to-one. The push rod matches the first through hole and moves through the first through hole. The push rod slides and is sealed to the inner wall of the first through hole. A driving component is provided on the push ring, which drives the push ring to move along the arrangement direction of the moving mold mechanism and the fixed mold mechanism.

[0008] Preferably, the driving component includes a guide rod, a first spring, an electromagnet, and a guide hole disposed on the push ring. The guide rod is parallel to the arrangement of the moving mold mechanism and the fixed mold mechanism. The guide rod matches the guide hole and passes through the guide hole. One end of the guide rod is fixedly disposed on the movable seat, and the other end of the guide rod is provided with a limit block. The push ring abuts against the limit block. The electromagnet is fixedly disposed on the movable seat, and the push ring is connected to the movable seat through the first spring.

[0009] Preferably, the first spring is sleeved on the guide rod, the first spring is located between the push ring and the moving seat, and the two ends of the first spring are respectively connected to the push ring and the moving seat.

[0010] Preferably, the module includes a protrusion and a mounting portion. The protrusion is located on the side of the mounting portion near the fixed mold mechanism. The side of the movable seat near the fixed mold mechanism has a mounting groove that matches the mounting portion. The mounting portion is located within the mounting groove and is fixedly connected to the movable seat by a locking member. The mounting portion has a second through hole, the number of which is the same as the number of the first through holes and corresponds one-to-one. The push rod is inserted into the second through hole and slides and seals against the inner wall of the second through hole. The side of the mounting portion near the fixed mold mechanism, the side of the movable seat near the fixed mold mechanism, and the end of the push rod near the fixed mold mechanism are all on the same vertical plane.

[0011] Preferably, the protrusion and the mounting part are integrally formed.

[0012] Preferably, the groove is provided with multiple partitions, which are circumferentially distributed around the second injection hole. The partitions divide the cavity inside the groove into multiple S-shaped air passages that are circumferentially distributed around the second injection hole and connected in sequence. The partitions are sealed and fitted to the movable seat, and the partitions are sealed and fitted to the inner wall of the groove on the side away from the movable seat.

[0013] Preferably, in two adjacent partitions, one partition is sealed and fixedly connected to the inner wall of the groove on the side near the second injection hole, and a gap is provided between the other side of this partition and the inner wall of the groove; the other partition is also sealed and fixedly connected to the inner wall of the groove on the side near the second injection hole.

[0014] Preferably, the extrusion rod includes a pusher, a connecting part, and an air-pushing part arranged sequentially along the arrangement direction of the moving mold mechanism and the fixed mold mechanism. The pusher, connecting part, and air-pushing part are all cylindrical and coaxially arranged. The diameter of the pusher and the diameter of the air-pushing part are equal to the diameter of the third through hole. The diameter of the connecting part is smaller than the diameter of the third through hole. The air-pushing part is located on the side of the fixed seat away from the moving seat.

[0015] Preferably, the movable seat is provided with a cutting groove, which communicates with the first injection hole, and a cutter is provided in the cutting groove, which is driven to move by a cylinder.

[0016] Compared with the prior art, the advantages of the present invention are as follows: This invention discloses a high-efficiency demolding injection mold for the production of automotive lamp covers. During demolding, the lamp cover is ejected from the mold cavity by an ejector rod, and the air cover on the protrusion is removed by a push rod, achieving automatic demolding without the need for manual demolding, thus improving safety. Moreover, during demolding, the air in the third through hole can be pushed into the mold cavity and then discharged. Under the action of airflow, it is easy to blow away impurities in the mold cavity, achieving automatic cleaning of the mold cavity and avoiding subsequent manual air blowing for cleaning, thus improving convenience. Attached Figure Description

[0017] Figure 1 This is a perspective view of a high-efficiency demolding injection mold for the production of automotive lamp covers according to the present invention; Figure 2 This is a front view of a high-efficiency demolding injection mold for the production of automotive lamp covers according to the present invention; Figure 3 This is a top view of a high-efficiency demolding injection mold for the production of automotive lamp covers according to the present invention; Figure 4 This is a left view of a high-efficiency demolding injection mold for the production of automotive lamp covers according to the present invention; Figure 5 This is a cross-sectional view of a high-efficiency demolding injection mold for the production of automotive lamp covers according to the present invention; Figure 6 This is an exploded view of the moving model mechanism; Figure 7 Exploded view of the fixed mold mechanism; Figure 8 A 3D view of the movable seat; Figure 9 This is a sectional view of the movable seat; Figure 10 This is a schematic diagram of the material feeding assembly; Figure 11 A 3D view of the module; Figure 12 This is a cross-sectional view of the module; Figure 13 A schematic diagram showing the connection structure between the cutter and the cylinder; Figure 14 A schematic diagram of the structure of the driving ring; Figure 15 A three-dimensional view of the mounting base; Figure 16 This is a sectional view of the fixed base; Figure 17A schematic diagram of the connection structure of the movable plate, the push rod, the transmission rod, and the second spring; Figure 18 This is a schematic diagram of the top rod structure.

[0018] in: Moving mold mechanism 1, fixed mold mechanism 2; The components include: a movable base 101, a module 102, a first injection hole 103, a second injection hole 104, a groove 105, an air hole 106, an air pipe 107, a pusher assembly 108, a mounting groove 109, a locking component 110, a partition 111, a knife groove 112, a cutter 113, and a cylinder 114. Protrusion 1021, mounting part 1022, second through hole 1023; Push ring 1081, push rod 1082, first through hole 1083, guide rod 1084, limit block 1085, first spring 1086, electromagnet 1087, guide hole 1088; Fixed base 201, movable plate 202, fixed connecting frame 203, mold groove 204, third through hole 205, ejector rod 206, transmission rod 207, fourth through hole 208, extrusion rod 209, second spring 210; Material pusher 2061, connecting part 2062, air pusher 2063. Detailed Implementation

[0019] like Figures 1 to 18 As shown, a high-efficiency demolding injection mold for producing automotive lamp covers in this embodiment includes a horizontally distributed moving mold mechanism 1 and a fixed mold mechanism 2. The moving mold mechanism 1 includes a movable base 101 and a module 102 fixedly disposed on the side of the movable base 101 near the fixed mold mechanism 2. The movable base 101 is connected to a moving system, which enables the movable base 101 to move along the arrangement direction of the moving mold mechanism 1 and the fixed mold mechanism 2. A first injection hole 103 is provided through the movable seat 101, and a second injection hole 104 is provided through the module 102. The first injection hole 103 and the second injection hole 104 are both arranged along the arrangement direction of the moving mold mechanism 1 and the fixed mold mechanism 2, and the first injection hole 103 and the second injection hole 104 are connected. The module 102 has an annular groove 105 on the side near the movable base 101. Two air holes 106 are provided through the movable base 101, and both air holes 106 are connected to the groove 105. The two air holes 106 are symmetrically arranged about the second injection hole 104. An air pipe 107 is fixedly inserted into the air hole 106. The air pipe 107 is made of heat insulation material. One end of the air pipe 107 extends to the side of the movable base 101 away from the fixed mold mechanism 2. One end of the air pipe 107 away from the fixed mold mechanism 2 is connected to the air supply system. The moving mold mechanism 1 also includes a pusher assembly 108, which is used to push down the injection-molded lampshade on the module 102; The pusher assembly 108 includes a pusher ring 1086 and multiple push rods 1082. The multiple push rods 1082 are evenly distributed circumferentially around the module 102. The specific number of push rods 1082 is three. The pusher ring 1086 is located on the side of the movable seat 101 away from the fixed mold mechanism 2. A gap is provided between the pusher ring 1086 and the movable seat 101. The movable seat 101 has a first through hole 1083 through it along the arrangement direction of the moving mold mechanism 1 and the fixed mold mechanism 2. The number of the first through holes 1083 is the same as the number of push rods 1082 and they correspond one-to-one. The push rods 1082 match the first through holes 1083. The push rods 1082 move through the first through holes 1083 and slide and are sealed to the inner wall of the first through holes 1083. The pusher ring 1086 is provided with a driving member, which drives the pusher ring 1086 to move along the arrangement direction of the moving mold mechanism 1 and the fixed mold mechanism 2. The driving component includes a guide rod 1084, a first spring 1086, an electromagnet 1087, and a guide hole 1088 disposed on the push ring 1086. The guide rod 1084 is parallel to the arrangement of the moving mold mechanism 1 and the fixed mold mechanism 2. The guide rod 1084 matches and passes through the guide hole 1088. One end of the guide rod 1084 is fixedly disposed on the moving seat 101, and the other end of the guide rod 1084 is provided with a limit block 1085. The push ring 1086 abuts against the limit block 1085. The electromagnet 1087 is fixedly disposed on the moving seat 101. The push ring 1086 is connected to the moving seat 101 through the first spring 1086. Specifically, the first spring 1086 is sleeved on the guide rod 1084 and is located between the push ring 1086 and the moving seat 101. The two ends of the first spring 1086 are respectively connected to the push ring 1086 and the moving seat 101. The module 102 includes a protrusion 1021 and a mounting portion 1022. The protrusion 1021 is disposed on the side of the mounting portion 1022 near the fixed mold mechanism 2. The protrusion 1021 and the mounting portion 1022 are integrally formed. The movable seat 101 is provided with a mounting groove 109 on the side near the fixed mold mechanism 2. The mounting groove 109 matches the mounting portion 1022, and the mounting portion 1022 is located within the mounting groove 109. The mounting portion 1022 is fixedly connected to the movable seat 101 by a locking member 110. The locking element 110 is a bolt. The mounting part 1022 is provided with a second through hole 1023. The number of the second through holes 1023 is the same as the number of the first through holes 1083 and they correspond one-to-one. The push rod 1082 is inserted into the second through hole 1023. The push rod 1082 slides and is sealed to the inner wall of the second through hole 1023. The side of the mounting part 1022 near the fixed mold mechanism 2, the side of the moving seat 101 near the fixed mold mechanism 2, and the end of the push rod 1082 near the fixed mold mechanism 2 are all on the same vertical plane. The groove 105 is provided with a plurality of partitions 111, which are circumferentially distributed around the second injection hole 104. The partitions 111 divide the cavity inside the groove 105 into a plurality of S-shaped air passages that are circumferentially distributed around the second injection hole 104 and connected in sequence. The partitions 111 are sealed and fitted with the movable seat 101, and the partitions 111 are sealed and fitted with the inner wall of the groove 105 on the side away from the movable seat 101. Specifically, among two adjacent partitions 111, one partition 111 is sealed and fixedly connected to the inner wall of the groove 105 on the side near the second injection hole 104, and a gap is provided between the other side of this partition 111 and the inner wall of the groove 105. The other partition 111 is also sealed and fixedly connected to the inner wall of the groove 105 on the side near the second injection hole 104. The fixed mold mechanism 2 includes a fixed base 201 and a movable plate 202. A fixed connecting frame 203 is provided on the side of the fixed base 201 away from the movable base 101, fixing the fixed base 201 to the installation position via the fixed connecting frame 203, thus achieving a fixed connection between the fixed base 201 and the installation position. The other side of the fixed base 201 is sealed and fitted to the movable base 101. A mold groove 204 is provided on the side of the fixed base 201 near the movable base 101, into which the module 102 is inserted. Specifically, the protrusion 1021 is located within the mold groove 204 and has a gap between it and the mold groove 204. A third through hole 205 is provided on the side of the fixed base 201 away from the movable base 101. The third through hole 205 communicates with the mold groove 204. A push rod 206 is inserted into the third through hole 205. The push rod 206 and the inner wall of the third through hole 205 are slidably and sealingly connected along the arrangement direction of the moving mold mechanism 1 and the fixed mold mechanism 2. The end of the push rod 206 near the movable base 101 is on a smooth surface with the inner wall of the mold groove 204. The movable plate 202 is located on the side of the push rod 206 away from the movable base 101. The push rod 206 is fixedly mounted on the movable plate 202. 2. A plurality of transmission rods 207 are provided on the side near the movable base 101. The plurality of transmission rods 207 are distributed circumferentially around the push rod 206. There are four transmission rods 207. The transmission rods 207 are parallel to the arrangement direction of the moving mold mechanism 1 and the fixed mold mechanism 2. A plurality of fourth through holes 208 are provided on the fixed base 201. A plurality of extrusion rods 209 are fixedly provided on the side of the movable base 101 near the fixed base 201. The plurality of fourth through holes 208 and the plurality of extrusion rods 209 correspond one-to-one with the plurality of transmission rods 207. The extrusion rods 209 are coaxially arranged with the transmission rods 207. The end of the extrusion rod 209 away from the movable seat 101 is slidably inserted into the fourth through hole 208, and the end of the transmission rod 207 near the movable seat 101 is movably inserted into the fourth through hole 208. The end of the extrusion rod 209 away from the movable seat 101 and the end of the transmission rod 207 near the movable seat 101 abut against each other. A second spring 210 is sleeved on the transmission rod 207. The second spring 210 is located between the movable plate 202 and the fixed seat 201. The two ends of the second spring 210 are respectively connected to the movable plate 202 and the fixed seat 201. The second spring 210 is in a stretched state. The extrusion rod 209 includes a pusher part 2061, a connecting part 2062, and an air pusher part 2063 arranged sequentially along the arrangement direction of the moving mold mechanism 1 and the fixed mold mechanism 2. The pusher part 2061, the connecting part 2062, and the air pusher part 2063 are all cylindrical and coaxially arranged. The diameter of the pusher part 2061 and the diameter of the air pusher part 2063 are equal to the diameter of the third through hole 205. The diameter of the connecting part 2062 is smaller than the diameter of the third through hole 205. The air pusher part 2063 is located on the side of the fixed base 201 away from the moving base 101. The working principle is as follows: The first injection hole 103 is connected to the feeding system, and the hot-melted raw material is sequentially transported from the first injection hole 103 and the second injection hole 104 to the mold cavity 204 through the feeding system. Then, cold air is delivered from one of the air pipes 107 to the groove 105 through the air supply system. The air in the groove 105 then flows through the S-shaped air passage to the other air pipe 107 and is discharged. The air absorbs the heat transferred from the raw material to the protrusion and discharges it. In this way, the raw material in the mold groove 204 is cooled. It should be noted that at this time, the end of the push rod 1082 near the fixed seat 201 is in contact with the raw material. The S-shaped air passage improves the uniformity of air distribution in the groove 105, thereby improving the cooling efficiency of the raw material. After the raw material cools and solidifies for a set time, it forms a lampshade. The moving system moves the moving seat 101 away from the fixed seat 201 and drives the extrusion rod 209 to move synchronously in the fourth through hole 208. The elastic action of the second spring 210 causes the moving plate 202 to move closer to the fixed seat 201. The movement of the moving plate 202 drives the transmission rod 207 to move synchronously in the fourth through hole 208. The movement of the moving plate 202 drives the push rod 206 to move synchronously, so that one end of the push rod 206 is inserted into the mold groove 204 and pushes the lampshade out of the mold groove 204. At this time, the lampshade and the moving seat 101 move synchronously, and the lampshade moves between the moving seat 101 and the fixed seat 201. It should be noted that after the hot-melted raw material enters the mold groove 204, the fixed seat 201 absorbs the heat from the raw material to raise its temperature. During the cooling period, because the cold source is close to the moving seat 101, the cooling rate of the side of the raw material closest to the moving seat 101 is faster than the cooling rate of the other side of the raw material. That is, the cooling rate of the raw material is faster than the cooling rate of the fixed seat 201 after absorbing heat. Through the principle of thermal expansion and contraction, a gap is easily generated between the raw material and the inner wall of the mold groove 204, thereby reducing the adhesion between the raw material and the inner wall of the mold groove 204, making it easier for the ejector rod 206 to push the raw material out of the mold groove 204. Then, the electromagnet 1087 is energized, causing a mutual attraction force between the electromagnet 1087 and the movable seat 101. This causes the push ring 1086 to move along the guide rod 1084 towards the movable seat 101, and compresses the first spring 1086. The movement of the push ring 1086 drives the push rod 1082 to move synchronously. In this way, the push rod 1082 pushes the lampshade at the protrusion 1021, making it easy for the lampshade to separate from the protrusion 1021 and fall off. A storage container can be placed under the movable seat 101 and the fixed seat 201, and the fallen lampshade is placed in the storage container. Finally, the electromagnet 1087 is de-energized. The elastic action of the first spring 1086 causes the push ring 1086 to move in the opposite direction and abut against the limit block 1085 to achieve reset. The moving system causes the moving seat 101 to move in the opposite direction to achieve reset. The pressing rod 209 pushes the transmission rod 207 to move in the opposite direction, thus stretching the second spring 210. The reverse movement of the transmission rod 207 drives the top rod 206 to move in the opposite direction through the moving plate 202 to achieve reset. Here, as the push rod 206 moves toward the moving seat 101, when the air pusher 2063 moves into the third through hole 205 and the pusher 2061 is completely placed in the mold groove 204, the air pusher 2063 can push the air in the third through hole 205 into the mold groove 204 and then discharge it. Under the action of the airflow, it is easy to blow away the impurities in the mold groove 204, realize the automatic cleaning of the mold groove 204, avoid the need for manual air blowing for cleaning in the later stage, and improve convenience. The movable seat 101 is provided with a cutting groove 112, which is connected to the first injection hole 103. A cutter 113 is provided in the cutting groove 112. The cutter 113 is driven to move by a cylinder 114. After the injection in the mold 204 is completed, the cutter 113 is driven to move by the cylinder 114, so that the cutter 113 cuts off the material in the first injection hole 103 and blocks the first injection hole 103. This not only prevents the material in the first injection hole 103 from leaking during the lampshade feeding process, but also facilitates the falling of the molded lampshade. When the next lampshade is injected, the cutter 113 is driven to reset by the cylinder 114, thus clearing the first injection hole 103. In summary, during the demolding process of the lamp cover, the cover is pushed out of the mold groove 204 by the ejector rod 206, and the air cover on the protrusion 1021 is removed by the push rod 1082, thus achieving automatic demolding without the need for manual demolding, improving safety. Moreover, during demolding, the air in the third through hole 205 can be pushed into the mold groove 204 and then discharged. Under the action of airflow, it is easy to blow away impurities in the mold groove 204, realizing automatic cleaning of the mold groove 204 and avoiding subsequent manual air blowing for cleaning, thus improving convenience.

[0020] In addition to the above embodiments, the present invention also includes other embodiments. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present invention.

Claims

1. A high-efficiency demolding injection mold for the production of automotive lamp covers, comprising a horizontally distributed moving mold mechanism (1) and a fixed mold mechanism (2), characterized in that: The moving mold mechanism (1) includes a movable seat (101) and a module (102) fixedly disposed on the side of the movable seat (101) near the fixed mold mechanism (2). The movable seat (101) is connected to a moving system, and the moving system enables the movable seat (101) to move along the arrangement direction of the moving mold mechanism (1) and the fixed mold mechanism (2). The movable base (101) is provided with a first injection hole (103) and the module (102) is provided with a second injection hole (104). The first injection hole (103) and the second injection hole (104) are both arranged along the arrangement direction of the moving mold mechanism (1) and the fixed mold mechanism (2). The first injection hole (103) and the second injection hole (104) are connected. The module (102) has an annular groove (105) on the side near the movable seat (101). Two air holes (106) are provided through the movable seat (101). Both air holes (106) are connected to the groove (105). An air pipe (107) is fixedly inserted in the air hole (106). One end of the air pipe (107) extends to the side of the movable seat (101) away from the fixed mold mechanism (2). One end of the air pipe (107) away from the fixed mold mechanism (2) is connected to the air supply system. The moving mold mechanism (1) also includes a pusher assembly (108), which is used to push down the injection-molded lampshade on the module (102); The fixed mold mechanism (2) includes a fixed base (201) and a movable plate (202). A fixed connecting frame (203) is provided on the side of the fixed base (201) away from the movable base (101). The other side of the fixed base (201) is sealed and fitted to the movable base (101). A mold groove (204) is provided on the side of the fixed base (201) close to the movable base (101). The module (102) is inserted into the mold groove (204). A third through hole (205) is provided on the side of the fixed base (201) away from the movable base (101). 05) Communicates with the mold groove (204), and a push rod (206) is inserted into the third through hole (205). The push rod (206) and the inner wall of the third through hole (205) slide and are sealed together along the arrangement direction of the moving mold mechanism (1) and the fixed mold mechanism (2). The end of the push rod (206) near the moving seat (101) is on the inner wall of the mold groove (204) for smoothing. The moving plate (202) is located on the side of the push rod (206) away from the moving seat (101). The push rod (206) is fixedly mounted on the moving plate (202). (202) A transmission rod (207) is provided on the side near the movable seat (101). The transmission rod (207) is parallel to the arrangement direction of the moving mold mechanism (1) and the fixed mold mechanism (2). A fourth through hole (208) is provided on the fixed seat (201). An extrusion rod (209) is fixedly provided on the side of the movable seat (101) near the fixed seat (201). The extrusion rod (209) is coaxially arranged with the transmission rod (207). The end of the extrusion rod (209) away from the movable seat (101) is slidably inserted into the fourth through hole (208). (207) The end of the rod near the movable seat (101) is movably inserted into the fourth through hole (208). The end of the extrusion rod (209) away from the movable seat (101) and the end of the transmission rod (207) near the movable seat (101) are abutted. A second spring (210) is sleeved on the transmission rod (207). The second spring (210) is located between the movable plate (202) and the fixed seat (201). The two ends of the second spring (210) are connected to the movable plate (202) and the fixed seat (201) respectively. The second spring (210) is in a stretched state.

2. The high-efficiency demolding injection mold for producing automotive lamp covers according to claim 1, characterized in that: The pusher assembly (108) includes a push ring (1086) and multiple push rods (1082). The multiple push rods (1082) are evenly distributed circumferentially around the module (102). The push ring (1086) is located on the side of the movable seat (101) away from the fixed mold mechanism (2). A gap is provided between the push ring (1086) and the movable seat (101). A first through hole (1083) is provided on the movable seat (101) along the arrangement direction of the moving mold mechanism (1) and the fixed mold mechanism (2). The number of the first perforations (1083) is the same as the number of push rods (1082) and they correspond one-to-one. The push rods (1082) are matched with the first perforations (1083). The push rods (1082) move through the first perforations (1083). The push rods (1082) slide and are sealed to the inner wall of the first perforations (1083). The push ring (1086) is provided with a driving component. The driving component drives the push ring (1086) to move along the arrangement direction of the moving mold mechanism (1) and the fixed mold mechanism (2).

3. The high-efficiency demolding injection mold for producing automotive lamp covers according to claim 2, characterized in that: The driving component includes a guide rod (1084), a first spring (1086), an electromagnet (1087), and a guide hole (1088) disposed on the push ring (1086). The guide rod (1084) is parallel to the arrangement of the moving mold mechanism (1) and the fixed mold mechanism (2). The guide rod (1084) matches the guide hole (1088) and passes through the guide hole (1088). One end of the guide rod (1084) is fixedly disposed on the moving seat (101), and the other end of the guide rod (1084) is provided with a limit block (1085). The push ring (1086) abuts against the limit block (1085). The electromagnet (1087) is fixedly disposed on the moving seat (101). The push ring (1086) is connected to the moving seat (101) through the first spring (1086).

4. The high-efficiency demolding injection mold for producing automotive lamp covers according to claim 3, characterized in that: The first spring (1086) is sleeved on the guide rod (1084). The first spring (1086) is located between the push ring (1086) and the moving seat (101). The two ends of the first spring (1086) are connected to the push ring (1086) and the moving seat (101) respectively.

5. A high-efficiency demolding injection mold for producing automotive lamp covers according to claim 2, characterized in that: The module (102) includes a protrusion (1021) and a mounting part (1022). The protrusion (1021) is located on the side of the mounting part (1022) near the fixed mold mechanism (2). The movable seat (101) has a mounting groove (109) on the side near the fixed mold mechanism (2). The mounting groove (109) matches the mounting part (1022). The mounting part (1022) is located in the mounting groove (109). The mounting part (1022) is fixedly connected to the movable seat (101) by a locking member (110). The first through hole (1083) is provided with a second through hole (1023). The number of the second through holes (1023) is the same as the number of the first through holes (1083) and they correspond one-to-one. The push rod (1082) is inserted into the second through hole (1023). The push rod (1082) slides and is sealed to the inner wall of the second through hole (1023). The side of the mounting part (1022) near the fixed mold mechanism (2), the side of the moving seat (101) near the fixed mold mechanism (2), and the end of the push rod (1082) near the fixed mold mechanism (2) are all on the same vertical plane.

6. A high-efficiency demolding injection mold for producing automotive lamp covers according to claim 5, characterized in that: The protrusion (1021) and the mounting part (1022) are integrally formed.

7. A high-efficiency demolding injection mold for producing automotive lamp covers according to claim 1, characterized in that: The groove (105) is provided with multiple partitions (111). The multiple partitions (111) are circumferentially distributed with the second injection hole (104) as the center. The cavity inside the groove (105) is divided into multiple S-shaped air passages that are circumferentially distributed with the second injection hole (104) as the center and are connected in sequence. The partitions (111) are sealed and fitted with the movable seat (101). The partitions (111) are also sealed and fitted with the inner wall of the groove (105) on the side away from the movable seat (101).

8. A high-efficiency demolding injection mold for producing automotive lamp covers according to claim 7, characterized in that: Of the two adjacent partitions (111), one partition (111) is sealed and fixedly connected to the inner wall of the groove (105) on the side near the second injection hole (104), and a gap is provided between the other side of this partition (111) and the inner wall of the groove (105). The other partition (111) is sealed and fixedly connected to the inner wall of the groove (105) on the side near the second injection hole (104), and a gap is provided between the other side of this partition (111) and the inner wall of the groove (105).

9. A high-efficiency demolding injection mold for producing automotive lamp covers according to claim 1, characterized in that: The extrusion rod (209) includes a pusher part (2061), a connecting part (2062), and an air pusher part (2063) arranged sequentially along the arrangement direction of the moving mold mechanism (1) and the fixed mold mechanism (2). The pusher part (2061), the connecting part (2062), and the air pusher part (2063) are all cylindrical and coaxially arranged. The diameter of the pusher part (2061) and the diameter of the air pusher part (2063) are equal to the diameter of the third through hole (205). The diameter of the connecting part (2062) is smaller than the diameter of the third through hole (205). The air pusher part (2063) is located on the side of the fixed seat (201) away from the moving seat (101).

10. A high-efficiency demolding injection mold for producing automotive lamp covers according to claim 1, characterized in that: The movable seat (101) is provided with a knife groove (112), which is connected to the first injection hole (103). A cutter (113) is provided in the knife groove (112), and the cutter (113) is driven to move by a cylinder (114).

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