High-precision car lamp mold

Abstract

The invention relates to a high-precision car lamp mold, and belongs to the field of molds, the high-precision car lamp mold comprises a base and a bottom mold, the base is hollow, the top of the base is provided with a first opening, the first opening is communicated with an inner cavity of the base, the bottom mold is horizontally arranged, and the outer wall of the bottom mold is provided with four mold cavities; the four mold cavities are circumferentially and uniformly distributed by taking the horizontal axis of the bottom mold as the center, the bottom mold is located in the first opening, the bottom mold is rotationally and hermetically connected with the inner wall of the first opening, a cooling pipe is coaxially and fixedly arranged on the bottom mold in a penetrating manner, the cooling pipe movably penetrates through the two sides of the base, and a driving system is connected to the cooling pipe. Autorotation of the cooling pipe is realized through the driving system; when the bottom die is cooled, the nozzle acts on the die cavity, cooling of the bottom die is achieved, meanwhile, heat on the bottom die is absorbed through water in the cooling pipe, the cooling uniformity of the bottom die is improved, and the cooling effect can be further improved.

Description

Technical Field

[0001] The present invention relates to a high-precision vehicle lamp mold, belonging to the field of molds. Background Art

[0002] Injection molding, also known as injection mold molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a variety of flower patterns and colors, the shape can range from simple to complex, the size can range from large to small, and the product size is precise, the product is easy to update, and it can form parts with complex shapes. Injection molding is suitable for molding processing fields such as mass production and products with complex shapes.

[0003] The utility model patent with the publication number CN220008588U discloses a high-precision vehicle lamp mold, including a bottom mold base. The top of the bottom mold base is connected with a bottom mold through a rotating shaft. There is a vehicle lamp mold cavity at each of the top and bottom of the bottom mold. Inside the bottom mold base, there is a cleaning chamber connected to the bottom of the bottom mold, and a water spray pipe is arranged inside the cleaning chamber. After one injection molding, the bottom mold is rotated by the operation of a motor, so as to switch the positions of the two vehicle lamp mold cavities on the bottom mold, and the vehicle lamp mold cavity after the molding operation is switched to the top of the cleaning chamber, and the vehicle lamp mold cavity is sprayed with clear water by the nozzles arranged on the water spray pipe, so as to achieve the functions of cleaning and cooling the surface of the vehicle lamp mold cavity. However, in the prior art, after the product in the mold is formed, the product needs to be taken out of the mold cavity of the mold, and the product is stuck in the mold cavity, which is inconvenient to operate. Moreover, when cooling the mold, only one side of the mold can be cooled, which easily causes the mold to deform and affects the product quality.

[0004] Therefore, there is a need for a high-precision vehicle lamp mold to improve the convenience of taking out the product and enhance the cooling effect. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: in order to overcome the deficiencies of the prior art, to provide a high-precision vehicle lamp mold that improves the convenience of taking out the product and enhances the cooling effect.

[0006] The technical solution adopted by the present invention to solve the above problems is: a high-precision vehicle lamp mold, including a base and a bottom mold. The base is hollow, and a first opening is arranged at the top of the base, and the first opening is communicated with the inner cavity of the base. The bottom mold is horizontally arranged, and four mold cavities are arranged on the outer wall of the bottom mold, and the four mold cavities are circumferentially and evenly distributed around the horizontal axis of the bottom mold. The bottom mold is located in the first opening, and the bottom mold is rotationally and sealingly connected to the inner wall of the first opening. A cooling pipe is coaxially and fixedly penetrated through the bottom mold, and the cooling pipe movably passes through both sides of the base. A driving system is connected to the cooling pipe, and the self-rotation of the cooling pipe is realized through the driving system; A partition is provided inside the base. The cavity inside the base is divided into an upper air chamber and a lower water chamber by the partition. A second opening is provided on the partition. The bottom mold passes through the second opening, and the bottom mold is rotationally and sealingly connected to the inner wall of the second opening. A first water pipe and a second water pipe are passed through the base. The outer ends of the first water pipe and the second water pipe are respectively rotationally and sealingly connected to both ends of the cooling pipe. The inner ends of the first water pipe and the second water pipe are both located inside the water chamber. The inner end of the second water pipe is connected to a power system; The bottom mold divides the air chamber into a dust removal chamber and a drying chamber. The dust removal chamber and the drying chamber are respectively located on both sides of the bottom mold. Two air blowing assemblies are provided on the base. The two air blowing assemblies are respectively arranged at the dust removal chamber and the drying chamber. Air holes are provided on both the dust removal chamber and the drying chamber; On the inner wall of the mold cavity close to the axis of the bottom mold, a first groove is provided. On the side of the first groove close to the axis of the bottom mold, a second groove is provided. A push plate is provided in the first groove. The push plate matches the first groove. The push plate fits against the side of the first groove close to the axis of the bottom mold. A first spring is provided in the second groove. The push plate is elastically connected to the inner wall of the second groove through the first spring. A first through hole is provided on the second groove. A pressurizing assembly is provided on the base. The pressurizing assembly is used to increase the air pressure in the first through hole.

[0007] Preferably, a nozzle is installed at the end of the first water pipe away from the rotating pipe. The water spraying direction of the nozzle is arranged upward.

[0008] Preferably, the side of the push plate away from the axis of the bottom mold is in the same plane as the side of the mold cavity close to the axis of the bottom mold.

[0009] Preferably, the air blowing assembly includes a fixed pipe and a movable pipe. The fixed pipe is fixedly passed through the base. The movable pipe is located inside the air chamber. One end of the movable pipe is movably inserted into the fixed pipe. The movable pipe is slidably and sealingly connected to the fixed pipe. A positioning block is fixedly provided at the end of the movable pipe away from the fixed pipe. The positioning block matches the mold cavity. The positioning block is inserted into the mold cavity. A moving unit is provided on the movable pipe. The moving unit is used to drive the movable pipe to move towards or away from the bottom mold. The end of the fixed pipe away from the movable pipe is connected to a gas supply system.

[0010] Preferably, the positioning block and the movable pipe are of an integrally formed structure.

[0011] Preferably, the moving unit includes a fixed block fixedly arranged on the outer peripheral wall of the fixed pipe. A moving rod is movably inserted through the fixed block. The moving rod is parallel to the moving pipe. One end of the moving rod is fixedly arranged on the positioning block, and the other end of the moving rod is fixedly provided with a limiting block which abuts against the fixed block. An electromagnet is fixedly arranged on the inner wall of the air cavity and is located on the side of the limiting block away from the moving rod. A second spring is sleeved on the moving rod and is located between the positioning block and the fixed block. Two ends of the second spring are respectively connected with the fixed block and the positioning block.

[0012] Preferably, the limiting block is made of iron.

[0013] Preferably, filter screens are installed in the first water pipe, the second water pipe and the air holes of the dust removal cavity.

[0014] Preferably, a connecting pipe is arranged on the base. One end of the connecting pipe fixedly penetrates through the air hole of the drying cavity, and the other end of the connecting pipe communicates with the water cavity. An exhaust hole is arranged on the base and communicates with the water cavity.

[0015] Preferably, the pressurizing assembly includes a pushing ring, four push rods and four second through holes. The four push rods and the four second through holes correspond to the four first through holes one by one. The second through holes are coaxially arranged and communicated with the first through holes. The push rods are coaxially inserted into the second through holes, and the push rods are slidably and sealingly connected with the second through holes. The pushing ring is located outside the base. One end of the push rod is fixedly arranged on the pushing ring. The pushing ring is connected to the moving system, and the depth of the push rod inserted into the second through hole is adjusted through the moving system.

[0016] Compared with the prior art, the advantages of the present invention are as follows: For a high-precision headlight mold of the present invention, when cooling the bottom mold, through the action of the nozzle on the mold cavity, the cooling of the bottom mold is realized. At the same time, the water in the cooling pipe absorbs the heat on the bottom mold, which not only improves the cooling uniformity of the bottom mold, but also can further enhance the cooling effect. Secondly, through the air discharged from the moving pipe acting on the bottom mold, air cooling is realized, that is, the cooling effect of the bottom mold is further improved, and the deformation of the bottom mold is avoided from affecting the product quality. In addition, when taking out the product, the product is pushed out of the mold cavity through the push plate, which plays the role of facilitating the taking out of the product. Description of the Drawings

[0017] Figure 1 is a perspective view of a high-precision headlight mold of the present invention; Figure 2 is a front view of a high-precision headlight mold of the present invention; Figure 3 is a top view of a high-precision headlight mold of the present invention; Figure 4 Left view of a high-precision headlight mold of the present invention; Figure 5 is Figure 2 A - A direction sectional view of; Figure 6 is Figure 2 B - B direction sectional view of; Figure 7 is Figure 3 C - C direction sectional view of; Figure 8 is Figure 5 Enlarged view of part D of; Figure 9 Sectional view of the base; Figure 10 Structural schematic diagram of the bottom mold; Figure 11 Sectional view of the bottom mold; Figure 12 Structural schematic diagram of the connection between the bottom mold and the push plate; Figure 13 is Figure 12 Sectional view of; Figure 14 Structural schematic diagram of the air blowing assembly; Figure 15 Structural schematic diagram of the connection between the pushing ring and the push rod.

[0018] Wherein: Base 1, bottom mold 2, first opening 3, mold cavity 4, cooling pipe 5, partition 6, air cavity 7, water cavity 8, second opening 9, first water pipe 10, second water pipe 11, nozzle 12, air blowing assembly 13, filter screen 14, connecting pipe 15, exhaust hole 16, first groove 17, second groove 18, push plate 19, first spring 20, first through hole 21, boosting assembly 22; Dust removal cavity 71, drying cavity 72; Fixed pipe 131, movable pipe 132, positioning block 133, fixed block 134, movable rod 135, limiting block 136, electromagnet 137, second spring 138; Pushing ring 221, push rod 222, second through hole 223. Specific embodiments

[0019] Such as Figure 1As shown in the figure, a high-precision headlight mold in this embodiment includes a base 1 and a bottom mold 2. The base 1 is hollow, and a first opening 3 is provided at the top of the base 1. The first opening 3 is communicated with the inner cavity of the base 1. The bottom mold 2 is horizontally arranged, and four mold cavities 4 are provided on the outer wall of the bottom mold 2. The four mold cavities 4 are circumferentially and evenly distributed around the horizontal axis of the bottom mold 2. The bottom mold 2 is located in the first opening 3, and the bottom mold 2 is rotationally and sealingly connected to the inner wall of the first opening 3; A cooling pipe 5 is coaxially and fixedly penetrated through the bottom mold 2. The cooling pipe 5 movably passes through both sides of the base 1. A driving system is connected to the cooling pipe 5, and the cooling pipe 5 is rotated by itself through the driving system. Here, the driving system can be a motor and a gear transmission structure. When the motor is started, the cooling pipe 5 is driven to rotate through the gear transmission. A partition 6 is provided in the base 1. The inner cavity of the base 1 is divided into an upper air cavity 7 and a lower water cavity 8 by the partition 6. A second opening 9 is provided on the partition 6. The bottom mold 2 passes through the second opening 9, and the bottom mold 2 is rotationally and sealingly connected to the inner wall of the second opening 9. A first water pipe 10 and a second water pipe 11 are penetrated through the base 1. The outer ends of the first water pipe 10 and the second water pipe 11 are respectively rotationally and sealingly connected to both ends of the cooling pipe 5. The inner ends of the first water pipe 10 and the second water pipe 11 are both located in the water cavity 8. A nozzle 12 is installed at one end of the first water pipe 10 away from the rotating pipe. The water spraying direction of the nozzle 12 is upward. The nozzle 12 is located directly below the bottom mold 2. The inner end of the second water pipe 11 is connected to a power system. During operation, clean water is filled in the water cavity 8, and the water in the water cavity 8 is sequentially conveyed to the second water pipe 11, the cooling pipe 5, and the first water pipe 10 through the power system, and finally flows back to the water cavity 8 from the first water pipe 10. Among them, the power system can specifically be a water pump; The bottom mold 2 divides the air cavity 7 into a dust removal cavity 71 and a drying cavity 72. The dust removal cavity 71 and the drying cavity 72 are respectively located on both sides of the bottom mold 2. Two air blowing assemblies 13 are provided on the base 1. The two air blowing assemblies 13 are respectively arranged at the dust removal cavity 71 and the drying cavity 72. Air holes are provided on both the dust removal cavity 71 and the drying cavity 72; The blowing component 13 includes a fixed pipe 131 and a movable pipe 132. The fixed pipe 131 is fixedly inserted through the base 1. The movable pipe 132 is located in the air cavity 7. One end of the movable pipe 132 is movably inserted into the fixed pipe 131. The movable pipe 132 is slidably and sealingly connected to the fixed pipe 131. A positioning block 133 is fixedly provided at the end of the movable pipe 132 away from the fixed pipe 131. The positioning block 133 is matched with the mold cavity 4. The positioning block 133 is inserted into the mold cavity 4. The positioning block 133 and the movable pipe 132 are of an integrally formed structure. A moving unit is provided on the movable pipe 132. The moving unit is used to drive the movable pipe 132 to move towards or away from the bottom mold 2. The end of the fixed pipe 131 away from the movable pipe 132 is connected to a gas supply system. Here, the gas supply system can be an air pump, and air is conveyed from the fixed pipe 131 to the movable pipe 132 through the air pump; The moving unit includes a fixed block 134. The fixed block 134 is fixedly provided on the outer peripheral wall of the fixed pipe 131. A moving rod 135 is movably inserted through the fixed block 134. The moving rod 135 is parallel to the movable pipe 132. One end of the moving rod 135 is fixedly provided on the positioning block 133. The other end of the moving rod 135 is fixedly provided with a limiting block 136. The limiting block 136 abuts against the fixed block 134. An electromagnet 137 is fixedly provided on the inner wall of the air cavity 7. The electromagnet 137 is located on the side of the limiting block 136 away from the moving rod 135. The limiting block 136 is made of iron. A second spring 138 is sleeved on the moving rod 135. The second spring 138 is located between the positioning block 133 and the fixed block 134. The two ends of the second spring 138 are respectively connected to the fixed block 134 and the positioning block 133; Filter meshes 14 are installed in the first water pipe 10, the second water pipe 11 and the air holes of the dust removal cavity 71; A connecting pipe 15 is provided on the base 1. One end of the connecting pipe 15 is fixedly inserted through the air hole of the drying cavity 72. The other end of the connecting pipe 15 is communicated with the water cavity 8. An exhaust hole 16 is provided on the base 1. The exhaust hole 16 is communicated with the water cavity 8; On the inner wall of the mold cavity 4 near the axis of the bottom mold 2, a first groove 17 is provided. On the side of the first groove 17 close to the axis of the bottom mold 2, a second groove 18 is provided. A push plate 19 is arranged in the first groove 17. The push plate 19 matches the first groove 17. The side of the push plate 19 away from the axis of the bottom mold 2 is in the same plane as the side of the mold cavity 4 close to the axis of the bottom mold 2. The push plate 19 fits against the side of the first groove 17 close to the axis of the bottom mold 2. A first spring 20 is arranged in the second groove 18. The push plate 19 is elastically connected to the inner wall of the second groove 18 through the first spring 20. A first through hole 21 is provided on the second groove 18. A pressure boosting component 22 is arranged on the base 1. The pressure boosting component 22 is used to increase the air pressure in the first through hole 21; The pressure boosting component 22 includes a pushing ring 221, four push rods 222 and four second through holes 223. The four push rods 222 and the four second through holes 223 correspond to the four first through holes 21 one by one. The second through hole 223 is coaxially arranged and communicated with the first through hole 21. The push rod 222 is coaxially inserted into the second through hole 223. The push rod 222 is slidably and sealingly connected to the second through hole 223. The pushing ring 221 is located outside the base 1. One end of the push rod 222 is fixedly arranged on the pushing ring 221. The pushing ring 221 is connected to a moving system. The depth of the push rod 222 inserted into the second through hole 223 is adjusted through the moving system. Here, the moving module can be a cylinder; During operation, the four mold cavities 4 are respectively oriented above the base 1, the dust removal chamber 71, the water chamber 8 and the drying chamber 72. The heated injection molding raw material is conveyed into the mold cavity 4 above the base 1. After extrusion molding, the product in this mold cavity 4 is taken out. Then, the cooling pipe 5 is driven to rotate 90 degrees, so that the mold cavity 4 that has just finished working rotates to the dust removal chamber 71, and the mold cavity 4 that was originally oriented towards the drying chamber 72 rotates to be oriented above the base 1. In this way, the production of the next product continues; Here, when the mold cavity 4 rotates to the position facing the water chamber 8, the water in the water chamber 8 is successively conveyed from the second water pipe 11, the cooling pipe 5 and the first water pipe 10 to the nozzle 12. The nozzle 12 sprays the water and acts on this mold cavity 4 to realize the cooling of the mold cavity 4. The water on this mold cavity 4 then drips back into the water chamber 8. Moreover, the water in the cooling pipe 5 can further absorb the heat on the mold cavity 4, that is, further realize the cooling of the mold cavity 4, thereby improving the cooling effect of the mold cavity 4. Among them, the interception of impurities in the water is realized through the filter screens 14 in the first water pipe 10 and the second water pipe 11; Among them, during the production of the product, air is successively conveyed from the fixed pipe 131 and the moving pipe 132 into the dust removal chamber 71 or the drying chamber 72; Under the action of the air flow, the impurities in the mold cavity 4 facing the dust removal cavity 71 are blown away, realizing the cleaning of the mold cavity 4, avoiding the influence of impurities on the product quality. The impurities in the dust removal cavity 71 are discharged from the air holes, and the impurities in the air are intercepted through the filter screen 14; The air acting on the mold cavity 4 in the drying cavity 72 facilitates the drying of the residual moisture in the mold cavity 4 after cooling. The water in the drying cavity 72 and the residual moisture are transported from the connecting pipe 15 to the water in the water cavity 8 and finally discharged from the exhaust hole 16. In this way, the residual moisture on the mold cavity 4 is conveniently transported back to the water cavity 8 again, realizing water conservation. And through the contact between the air and the water, the heat in the water is conveniently discharged with the air, reducing the temperature of the water, thereby improving the cooling effect of the mold cavity 4; When the bottom mold 2 rotates, the electromagnet 137 is energized, so that the electromagnet 137 generates an attractive force on the limiting block 136, that is, the limiting block 136 drives the moving rod 135 to move away from the bottom mold 2. The movement of the moving rod 135 drives the positioning block 133 and the moving pipe 132 to move synchronously, and causes the first spring 20 to deform. At this time, the positioning block 133 is separated from the mold cavity 4; After the bottom mold 2 finishes rotating, the electromagnet 137 is powered off. Through the elastic action of the first spring 20, the positioning block 133 moves in the reverse direction to reset, and the positioning block 133 is inserted into the mold cavity 4. At this time, the top and bottom of the positioning block 133 are respectively in contact with the inner wall of the mold cavity 4, thereby realizing the positioning of the bottom mold 2; When the product in the mold cavity 4 needs to be taken out, the driving ring 221 is driven by the cylinder to move, and the depth of the push rod 222 inserted into the second through hole 223 is increased, so that the air in the second through hole 223 is transported from the first through hole 21 to the second groove 18, increasing the air pressure in the second groove 18. Under the action of the air pressure, the push plate 19 moves away from the axis of the bottom mold 2, and the push plate 19 pushes the product in the mold cavity 4 out, and causes the first spring 20 to deform. After the product is taken out, the driving ring 221 resets, and through the elastic action of the first spring 20, the push plate 19 moves in the reverse direction to reset. In this way, it is convenient to take out the product; In summary, when cooling the bottom mold 2, through the nozzle 12 acting on the mold cavity 4, the cooling of the bottom mold 2 is realized. At the same time, the water in the cooling pipe 5 absorbs the heat on the bottom mold 2, which not only improves the cooling uniformity of the bottom mold 2, but also further improves the cooling effect. Secondly, through the air discharged from the moving pipe 132 acting on the bottom mold 2, air cooling is realized, that is, the cooling effect of the bottom mold 2 is further improved, avoiding the deformation of the bottom mold 2 and affecting the product quality. In addition, when taking out the product, the push plate 19 pushes the product out of the mold cavity 4, which is convenient for taking out the product; In addition to the above embodiments, the present invention also includes other implementation manners. Any technical solutions formed by equivalent transformation or equivalent substitution shall fall within the protection scope of the claims of the present invention.

Claims

1. A high-precision vehicle headlight mold, comprising a base (1) and a bottom mold (2). The base (1) is hollow, and a first opening (3) is provided at the top of the base (1). The first opening (3) communicates with the inner cavity of the base (1). The bottom mold (2) is horizontally arranged, and four mold cavities (4) are provided on the outer wall of the bottom mold (2). The four mold cavities (4) are circumferentially and evenly distributed around the horizontal axis of the bottom mold (2). The bottom mold (2) is located in the first opening (3), and the bottom mold (2) is rotationally and sealingly connected to the inner wall of the first opening (3). It is characterized in that: A cooling pipe (5) is coaxially and fixedly penetrated through the bottom mold (2). The cooling pipe (5) movably passes through both sides of the base (1). A driving system is connected to the cooling pipe (5), and the rotation of the cooling pipe (5) is realized through the driving system; A partition plate (6) is arranged in the base (1). The inner cavity of the base (1) is divided into an upper air cavity (7) and a lower water cavity (8) by the partition plate (6). A second opening (9) is arranged on the partition plate (6). The bottom mold (2) passes through the second opening (9). The bottom mold (2) is rotationally and sealingly connected to the inner wall of the second opening (9). A first water pipe (10) and a second water pipe (11) are penetrated through the base (1). The outer ends of the first water pipe (10) and the second water pipe (11) are rotationally and sealingly connected to both ends of the cooling pipe (5) respectively. The inner ends of the first water pipe (10) and the second water pipe (11) are both located in the water cavity (8). The inner end of the second water pipe (11) is connected to a power system; The bottom mold (2) divides the air cavity (7) into a dust removal cavity (71) and a drying cavity (72). The dust removal cavity (71) and the drying cavity (72) are respectively located on both sides of the bottom mold (2). Two air blowing assemblies (13) are arranged on the base (1). The two air blowing assemblies (13) are respectively arranged at the dust removal cavity (71) and the drying cavity (72). Air holes are arranged on both the dust removal cavity (71) and the drying cavity (72); On the inner wall of the mold cavity (4) close to the axis of the bottom mold (2), a first groove (17) is arranged. A second groove (18) is arranged on the side of the first groove (17) close to the axis of the bottom mold (2). A push plate (19) is arranged in the first groove (17). The push plate (19) matches the first groove (17). The push plate (19) fits with the first groove (17) on the side close to the axis of the bottom mold (2). A first spring (20) is arranged in the second groove (18). The push plate (19) is elastically connected to the inner wall of the second groove (18) through the first spring (20). A first through hole (21) is arranged on the second groove (18). A pressurizing assembly (22) is arranged on the base (1). The pressurizing assembly (22) is used to increase the air pressure in the first through hole (21).

2. The high-precision headlight mold according to claim 1, characterized in that: A nozzle (12) is installed at the end of the first water pipe (10) far from the rotating pipe. The water spraying direction of the nozzle (12) is arranged upwards.

3. A high-precision headlight mold according to claim 1, characterized in that: The side of the push plate (19) far from the axis of the bottom mold (2) is in the same plane as the side of the mold cavity (4) close to the axis of the bottom mold (2).

4. A high-precision headlight mold according to claim 1, characterized in that: The blowing assembly (13) includes a fixed pipe (131) and a movable pipe (132). The fixed pipe (131) is fixedly inserted through the base (1). The movable pipe (132) is located within the air cavity (7). One end of the movable pipe (132) is movably inserted into the fixed pipe (131). The movable pipe (132) is slidably and sealingly connected to the fixed pipe (131). A positioning block (133) is fixedly provided at the end of the movable pipe (132) away from the fixed pipe (131). The positioning block (133) matches the mold cavity (4). The positioning block (133) is inserted into the mold cavity (4). A moving unit is provided on the movable pipe (132). The moving unit is used to drive the movable pipe (132) to move towards or away from the bottom mold (2). The end of the fixed pipe (131) away from the movable pipe (132) is connected to a gas supply system.

5. A high-precision headlight mold according to claim 4, characterized in that: The positioning block (133) and the movable pipe (132) are of an integrally formed structure.

6. A high-precision headlight mold according to claim 4, characterized in that: The moving unit includes a fixed block (134). The fixed block (134) is fixedly provided on the outer peripheral wall of the fixed pipe (131). A moving rod (135) is movably inserted through the fixed block (134). The moving rod (135) is parallel to the movable pipe (132). One end of the moving rod (135) is fixedly provided on the positioning block (133). A limiting block (136) is fixedly provided at the other end of the moving rod (135). The limiting block (136) abuts against the fixed block (134). An electromagnet (137) is fixedly provided on the inner wall of the air cavity (7). The electromagnet (137) is located on the side of the limiting block (136) away from the moving rod (135). A second spring (138) is sleeved on the moving rod (135). The second spring (138) is located between the positioning block (133) and the fixed block (134). The two ends of the second spring (138) are respectively connected to the fixed block (134) and the positioning block (133).

7. The high-precision headlight mold according to claim 6, wherein: The material of the limiting block (136) is iron.

8. A high-precision headlight mold according to claim 1, characterized in that: Filter meshes (14) are installed in the pores of the first water pipe (10), the second water pipe (11), and the dust removal cavity (71).

9. A high-precision headlight mold according to claim 1, characterized in that: A connecting pipe (15) is provided on the base (1). One end of the connecting pipe (15) is fixedly inserted through the pore of the drying cavity (72). The other end of the connecting pipe (15) communicates with the water cavity (8). An exhaust hole (16) is provided on the base (1). The exhaust hole (16) communicates with the water cavity (8).

10. A high-precision headlight mold according to claim 1, characterized in that: The supercharging assembly (22) includes a pushing ring (221), four push rods (222) and four second through holes (223). The four push rods (222) and the four second through holes (223) correspond to the four first through holes (21) one by one. The second through holes (223) are coaxially arranged and communicated with the first through holes (21). The push rods (222) are coaxially inserted into the second through holes (223). The push rods (222) are slidably and sealingly connected to the second through holes (223). The pushing ring (221) is located outside the base (1). One end of the push rod (222) is fixedly arranged on the pushing ring (221). The pushing ring (221) is connected to a moving system, and the depth of insertion of the push rod (222) into the second through hole (223) is adjusted by the moving system.

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