An injection molding mold for automobile light distribution mirror

Abstract

The present invention relates to an injection molding mold for automobile lens, comprising an upper mold body and a lower mold body, wherein the lower mold body comprises a lower fixed plate and a movable mold plate, wherein a core is provided on the movable mold plate, wherein a plurality of first top blocks and a plurality of second top blocks are slidably connected in the core, wherein a first driving assembly is also provided on the lower fixed plate, wherein a molding block is slidably connected in a mold opening direction perpendicular to the mold, wherein a chamber for molding hemming and an assembly part is formed between the molding block, the core and the first top block, wherein an oblique groove is provided on the molding block, and an oblique guide block for inserting into the oblique groove is provided on the fixed mold plate. The present invention solves the problem of undercut between the hemming and the mold while ensuring hemming molding.

Description

Technical Field

[0001] The invention relates to the field of moulds, in particular to an injection moulding mould for an automobile light distribution mirror. Background Art

[0002] A kind of automobile light distribution mirror 8 Fig.10 As shown, it includes a transparent mirror body 81 and an assembly part 82. The transparent mirror body 81 needs to be injection molded by transparent plastic, while the assembly part 82 needs to be injection molded by high-strength plastic such as PC.

[0003] The automobile light distribution mirror 8 needs to be injection molded by a two-color mold. When the automobile light distribution mirror 8 is injection molded by the two-color mold, the assembly part 82 is injection molded first, and then the transparent mirror body 81 is injection molded, so that the transparent mirror body 81 is connected to the assembly part 82.

[0004] Because the transparent mirror body 81 is an exterior transparent part, it directly participates in the scattering of light, so when the automobile light distribution mirror 8 is demoulded, no push marks or scratches should be produced on the transparent mirror body 81. Therefore, it is necessary to design the demoulding structure of the top block of the two-color mold to contact the assembly part 82, and the whole automobile light distribution mirror 8 is pushed out from the mold core 31 by the top block to push the assembly part 82 to complete the demoulding of the product.

[0005] However, the side of the transparent mirror body 81 is provided with a edging 83, which will be embedded in the mold after molding to form an inverted structure with the mold, thereby hindering the demolding of the product. Therefore, it is necessary to design a mold structure to complete the molding of the edging 83 while releasing the inverted structure between the edging 83 and the mold. Summary of the invention

[0006] The present application provides an injection molding mold for an automobile light distribution mirror, which not only ensures the edge molding but also solves the problem of undercut between the edge and the mold.

[0007] The present application provides an automotive mirror injection molding mold that adopts the following technical solution:

[0008] A mold for injection molding of automobile lens, comprising an upper mold body and a lower mold body, wherein the upper mold body comprises an upper fixed plate, a hot runner plate, and a fixed mold plate, wherein a mold cavity is provided on the fixed mold plate, and the lower mold body comprises a lower fixed plate and a movable mold plate, wherein a mold core is provided on the movable mold plate, wherein a plurality of first top blocks and a plurality of second top blocks are slidably connected in the mold core, wherein the plurality of first top blocks and the plurality of second top blocks are used for molding an assembly part, and a first driving assembly is further provided on the lower fixed plate, wherein the first driving assembly is used for driving the plurality of first top blocks and the plurality of second top blocks to move so as to The invention discloses an injection molded automobile lens ejection core, wherein a molding block is slidably connected to the movable template along a direction perpendicular to the mold opening direction of the mold, and a cavity for molding a hemming and an assembly portion is formed between the molding block, the core, and the first ejector block. The molding block presses the first ejector block into the core, and an inclined groove is provided on the molding block. An inclined guide block for inserting into the inclined groove is provided on the fixed template. The inclined guide block is inserted into the inclined groove when the mold is closed to drive the molding block to move close to the core, and the inclined guide block is disengaged from the inclined groove when the mold is opened to drive the molding block to move away from the hemming that has been formed.

[0009] By adopting the above technical solution, when the mold is opened and closed, the mold opening force of the mold under the action of the inclined guide block and the inclined groove will be converted into the force of the molding block movement, so that when the mold is opened, the molding block will automatically slide away from the already formed edge, thereby releasing the undercut structure between the edge and the mold. When the mold is closed, the molding block will move close to the core and press the first top block into the core to form a cavity. When the mold is closed, the molding block will press the first top block to produce a reset effect on the first top block, so that the first top block can accurately return to the initial position, preventing the first drive component from having insufficient driving force so that the first top block cannot be accurately reset. The accurate reset of the first top block can prevent flash and step differences from being easily generated when the edge and assembly parts are formed.

[0010] Preferably, the first driving assembly includes a top plate slidably connected to the lower fixed plate, a cylinder provided on the lower fixed plate and used to drive the top plate to slide, a plurality of first push rods and a plurality of second push rods provided on the top plate, the plurality of first push rods are respectively connected to the plurality of first push blocks, and the plurality of second push rods are respectively connected to the plurality of second push blocks.

[0011] By adopting the above technical solution, the extension and retraction of the output shaft of the oil cylinder will control the sliding of the top plate, and the sliding of the top plate will lead the sliding of the multiple first top blocks and the multiple second top blocks through the multiple first top rods and the multiple second top rods, so as to realize the ejection and resetting of the multiple first top blocks and the multiple second top blocks.

[0012] Preferably, a slide groove is provided on the top plate, and the end of the first top rod away from the first top block is slidably connected in the slide groove, and a second driving component is provided on the movable template, and the second driving component is used to drive the first top block to slide.

[0013] By adopting the above technical solution, after the mold is opened, the second driving unit will drive the first top block to slide away from the lower fixed plate. When the first top block slides, it will lift the edge, thereby driving one end of the car light distribution mirror to lift up and detach from the core first, and then drive the multiple second top blocks to slide under the drive of the oil cylinder so that the multiple second top blocks lift the other end of the car light distribution mirror and detach from the core. Then, driven by the oil cylinder, the multiple first top blocks and the multiple second top blocks lift the car light distribution mirror together, allowing the car light distribution mirror to completely detach from the core, achieving the effect of three ejections. Compared with the traditional one-time ejection, it can effectively prevent the transparent mirror body from being strained and the assembly part from being damaged.

[0014] Preferably, the second driving assembly includes a pull rod arranged on the forming block and a third top block arranged on the end of the pull rod away from the forming block, the end of the pull rod away from the forming block passes through the first top block and extends into the movable template, the third top block is located on the end of the pull rod extending into the movable template, the first top block is located on the movement path of the third top block, and the third top block will conflict with the first top block when the pull rod moves and drive the first top block to move away from the lower fixed plate.

[0015] By adopting the above technical solution, when the mold is opened, the forming block will move away from the core and move with the tie rod. During the movement of the tie rod, the third top block will first conflict with the first top block, and then as the tie rod continues to move, the third top block will push the first top block out of the core. When the mold is closed, the forming block moves close to the core. During the movement of the forming block, the forming block will press the first top block back into the core, so that the first top block moves back to its original position.

[0016] Preferably, a first air duct is opened on the top plate, the first air duct is connected to the slide groove, a second air duct is opened on the first top rod, a third air duct is opened on the first top block, an air duct opening of the second air duct is located in the slide groove and connected to the first air duct, another air duct opening of the second air duct is connected to the third air duct, and the air duct opening of the third air duct faces the core.

[0017] By adopting the above technical solution, after one end of the automobile photometric mirror is lifted up by the first top block, air is inflated into the first air channel through the air compressor and the air pipe. The injected gas enters the slide groove through the first air channel, and then rushes into the space between the automobile photometric mirror and the core through the second air channel and the third air channel, thereby pushing the automobile photometric mirror to separate from the core and achieving the purpose of demolding.

[0018] Preferably, a first accommodating groove is opened on the core, the first top block is slidably connected in the first accommodating groove, an exhaust gap is formed between the first top block and the first accommodating groove, and the exhaust gap is connected to the third air duct and chamber one.

[0019] By adopting the above technical solution, during the edge-wrapping injection molding, the air retained in the first chamber can enter the third air duct through the exhaust gap, thereby preventing air from being trapped in the first chamber, thereby ensuring the molding quality of the edge-wrapping.

[0020] Preferably, the movable template is formed by splicing a plurality of inserts together, the plurality of inserts are arranged on a lower fixed plate, the plurality of inserts are provided with cores, and the plurality of inserts are slidably connected with forming blocks.

[0021] By adopting the technical solution, the square core is processed and the mold is assembled and transported.

[0022] The technical effects of the present invention are mainly reflected in the following aspects:

[0023] 1. The present invention not only ensures the edge forming, but also solves the problem of undercut between the edge and the mold;

[0024] 2. The present invention provides a three-time ejection structure to prevent the automobile lens from being damaged during demoulding;

[0025] 3. The present invention provides a gas-assisted demoulding structure to assist in demoulding of the product and reduce the occurrence of product demoulding damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the two-color mold of the present application when the mold is in the closed state.

[0027] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle and upper mold body.

[0028] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle and lower mold.

[0029] Figure 4 yes Figure 3 Schematic diagram of the structure of one insert block, two first top blocks and five second top blocks.

[0030] Figure 5 yes Figure 3 Schematic diagram of the structure of the first drive component.

[0031] Figure 6 yes Figure 3 Partial cross-sectional view of the middle and lower mold bodies along line AA.

[0032] Figure 7 yes Figure 3 Partial cross-sectional view of the middle and lower mold bodies along line BB.

[0033] Figure 8 yes Figure 6 A partial enlarged view of point C in the middle.

[0034] Fig. 9 yes Figure 6 A partial enlarged view of point D in the middle.

[0035] Fig.10 It is a structural diagram of a car's photometric mirror.

[0036] 1. upper mold body; 11. upper fixed plate; 12. hot runner plate; 13. fixed mold plate; 131. cavity; 132. inclined guide block; 2. lower mold body; 21. lower fixed plate; 221. mounting plate; 22. movable mold plate; 3. insert; 31. core; 32. first ejector block; 33. second ejector block; 34. molding block; 341. inclined groove; 35. chamber one; 36. first accommodating groove; 37. exhaust gap; 38. second accommodating groove; 4. first drive assembly; 41. ejector plate; 411. slide groove; 42. oil cylinder; 43. first ejector rod; 44. second ejector rod; 5. second drive assembly; 51. pull rod; 52. third ejector block; 71. first air duct; 72. second air duct; 73. third air duct; 8. automobile light distribution mirror; 81. transparent mirror body; 82. assembly part; 83. edging. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings to make the technical solution of the present application easier to understand and grasp.

[0038] Reference Figure 1 and Figure 2 The automotive lens injection molding mold of this embodiment includes an upper mold body 1 and a lower mold body 2. The upper mold body 1 includes an upper fixed plate 11, a hot runner plate 12, and a fixed mold plate 13. The three plates are fixed together by bolts and other fixing parts. The fixed mold plate 13 is provided with four cavities 131.

[0039] Reference Figure 1 , Figure 3 and Figure 4 The lower mold body 2 includes a lower fixed plate 21 and a movable mold plate 22 fixed together by bolts. The movable mold plate 22 is formed by two inserts 3 spliced ​​together, and the two inserts 3 are fixed to the lower fixed plate 21 by bolts, and the two inserts 3 are close to each other. Two cores 31 are provided on each insert 3, and two first receiving grooves 36 and five second receiving grooves 38 are provided in each core 31. The two first receiving grooves 36 are slidably connected with the first top blocks 32, and the five second receiving grooves 38 are slidably connected with the second top blocks 33. The two first top blocks 32 and the five second top blocks 33 are used for forming the assembly part 82.

[0040] Reference Figure 1 , Figure 3 , Figure 5 and Figure 6, the lower fixed plate 21 is also provided with four groups of first driving components 4, the first driving components 4 are used to drive the two first top blocks 32 and five second top blocks 33 in the same core 31 to move so as to eject the formed automobile light distribution mirror 8 from the core 31. The first driving component 4 includes a top plate 41 slidably connected to the lower fixed plate 21, a cylinder 42 provided on the lower fixed plate 21 and used to drive the top plate 41 to slide, and five second push rods 44 fixed on the top plate 41. Among them, the lower fixed plate 21 is fixedly connected with a mounting plate 221, the mounting plate 221 is located between the top plate 41 and the lower fixed plate 21, the cylinder 42 is fixed on the mounting plate 221, the output shaft of the cylinder 42 passes through the mounting plate 221 and is fixedly connected to the top plate 41, and the two top plates 41 on the same side are connected to each other as a whole, which is convenient for machining. The end of the five second push rods 44 away from the top plate 41 extends into the corresponding insert 3 and is fixedly connected to the five second push blocks 33 respectively.

[0041] Reference Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 8 , two slide grooves 411 are provided on the top plate 41, and the first driving assembly 4 also includes two first push rods 43 respectively connected in sliding motion in the two slide grooves 411, and the ends of the two first push rods 43 away from the top plate 41 extend into the corresponding inserts 3 and are respectively fixedly connected to the two first push blocks 32. In the mold closing state, the end of the first push rod 43 away from the first push block 32 contacts the bottom wall of the slide groove 411, and a sliding space is left between the end of the first push rod 43 away from the first push block 32 and the top wall of the slide groove 411. The bottom wall of the slide groove 411 refers to the groove wall of the slide groove 411 away from the insert 3, and the top wall of the slide groove 411 refers to the groove wall of the slide groove 411 close to the insert 3.

[0042] Reference Figure 1-Figure 3 , Figure 7, a molding block 34 is slidably connected to the insert 3 along a direction perpendicular to the mold opening direction of the mold, and a chamber 35 for molding the edge wrapping 83 is formed between the molding block 34, the core 31, and the first top block 32. When the mold is closed, the molding block 34 presses the two first top blocks 32 into the two first receiving grooves 36. The three side walls of the molding block 34 are provided with inclined grooves 341, and each cavity 131 is fixed with a plurality of inclined guide blocks 132 for inserting the inclined grooves 341. When the mold is closed, the inclined guide block 132 is inserted into the inclined groove 341, and the molding block 34 presses the first top block 32 into the first receiving groove 36. The molding block 34 presses the first top block 32 to produce a reset effect on the first top block 32, so that the first top block 32 can accurately return to the initial position, so that it is not easy to produce flash and step difference when the edge wrapping 83 and the assembly part 82 are formed. When the mold is opened and closed, the plurality of inclined guide blocks 132 and the plurality of inclined grooves 341 convert the mold opening force and the mold closing force into the motion force of the molding block 34, so that the molding block 34 moves.

[0043] Reference Figure 1 , Figure 3 , Figure 7 , a second driving assembly 5 is also provided on the insert 3, and the second driving assembly 5 is used to drive the first top block 32 to slide. The second driving assembly 5 includes a tie rod 51 fixed on the end of the molding block 34 close to the core 31, and a third top block 52 fixed on the end of the tie rod 51 away from the molding block 34. The end of the tie rod 51 away from the molding block 34 passes through the first top block 32 and extends into the moving template 22, the third top block 52 is located on the end of the tie rod 51 extending into the moving template 22, the third top block 52 is located on the side of the first top block 32 away from the molding block 34, and the first top block 32 is located on the movement path of the third top block 52. When the tie rod 51 moves, the third top block 52 will conflict with the first top block 32 and drive the first top block 32 to move away from the lower fixed plate 21.

[0044] Reference Figure 1 , Figure 3 , Figure 6 , Figure 8 , Fig. 9 The top plate 41 is provided with a first air passage 71, the first air passage 71 is connected to the chute 411, and the connecting port between the first air passage 71 and the chute 411 is located on the bottom wall of the chute 411. The second top rod 44 is provided with a second air passage 72 along its length on its end surface located in the chute 411, and one end of the second air passage 72 is located in the chute 411 and connected to the first air passage 71.

[0045] Reference Figure 1 , Figure 3 , Figure 6 , Figure 8 , Fig. 9An exhaust gap 37 is formed between the first top block 32 and the first receiving groove 36, and the exhaust gap 37 is connected to the chamber 1 35. A third air channel 73 is provided on the first top block 32, and one air channel opening of the third air channel 73 is connected to the exhaust gap 37, and another air channel opening of the third air channel 73 is connected to the second air channel 72. When the mold is assembled on the injection molding machine, the first air channel 71 is connected to the air outlet of the air compressor through an air pipe, so that when the automobile light distribution mirror 8 is demolded, the air compressor can provide compressed air to assist the demolding of the automobile light distribution mirror 8.

[0046] Reference Figure 1-Figure 9 The specific demoulding steps of the automotive light distribution mirror 8 of this application are as follows:

[0047] After the mold is closed for injection molding, the injection molding machine will move the lower mold body 2 away from the upper mold body 1. When the mold is opened, the molding block 34 will move away from the inclined guide block 132. Under the action of the inclined guide block 132 and the inclined groove 341, the mold opening force of the mold will be converted into a force for the molding block 34 to move away from the core 31. Therefore, when the mold is opened, the molding block 34 will automatically slide away from the already formed edge 83, thereby releasing the undercut structure between the edge 83 and the mold.

[0048] When the forming block 34 moves away from the core 31, it will move with the tie rod 51. During the movement of the tie rod 51, the third top block 52 will first abut against the first top block 32. Subsequently, as the tie rod 51 continues to move, the third top block 52 will push the first top block 32 out of the first receiving groove 36. During the sliding movement of the first top block 32 out of the first receiving groove 36, the edge 83 and one side of the assembly portion 82 will be lifted, thereby driving one end of the automobile light distribution mirror 8 to first lift up and detach from the core 31, thus realizing the first ejection and demoulding action.

[0049] When the first top block 32 moves away from the lower fixed plate 21, the first top block 32 will also slide with the first top rod 43 in the slide groove 411, and the first top rod 43 gradually moves away from the bottom wall of the slide groove 411. When the inclined guide block 132 completely leaves the inclined groove 341, the forming block 34, the pull rod 51 and the third top block 52 stop moving, and the first forming block 34 and the first top rod 43 also stop moving. The end of the first top rod 43 away from the first top block 32 abuts against the top wall of the slide groove 411, and a certain sliding space is formed between the end of the first top rod 43 away from the first top block 32 and the bottom wall of the slide groove 411.

[0050] Then the air compressor injects gas into the first air channel 71 through the air pipe. The injected gas will enter the slide groove 411 through the first air channel 71. The gas entering the slide groove 411 will pass through the second air channel 72 and the third air channel 73 and rush into the space between the molding cavity 131 and the raised edge 83. Then the gas will drill into the space between the transparent mirror body 81 and the core 31 along the molding cavity 131, and blow up a part of the transparent mirror body 81, thereby pushing the automobile light distribution mirror 8 to separate from the core 31, and achieving the purpose of auxiliary demolding.

[0051] Because the transparent mirror body 81 cannot be provided with a top block for ejection, the demoulding of the transparent mirror body 81 actually completely relies on the top block structure hard top assembly part 82 to separate the transparent mirror body 81 from the core 31, which is equivalent to forcibly pulling the transparent crystal out of the core 31. Therefore, the strain rate of the transparent mirror body 81 during the demoulding process of the automotive light distribution mirror 8 is still relatively high. The use of gas-assisted ejection can pre-separate a part of the transparent mirror body 81 from the core 31 when the product is completely demoulded, which will greatly reduce the probability of the transparent mirror body 81 being strained during demoulding, thereby improving the overall yield rate of the automotive light distribution mirror 8.

[0052] After the blowing is finished, the output shaft of the oil cylinder 42 extends and pushes the top plate 41 toward the insert block 3. Because there is a sliding space between the first top rod 43 and the bottom wall of the slide groove 411, the front section of the movement of the top plate 41 has no effect on the first top rod 43, and only makes the bottom wall of the slide groove 411 gradually approach the first top rod 43. Therefore, in the front section of the movement of the top plate 41, only the first top rod 43 moves toward the core 31, and when the first top rod 43 moves, it will slide the second top block 33 out of the second receiving groove 38, so that the second top block 33 lifts the end of the automobile light distribution mirror 8 away from the molding block 34 and separates it from the core 31, realizing the second ejection and demolding action of the automobile light distribution mirror 8.

[0053] The top plate 41 will then move to contact the first push rod 43, so that the first push rod 43 contacts the bottom wall of the slide groove 411, and the second ejection and demoulding action is completed. The output shaft of the rear oil cylinder 42 is still extended to drive the top plate 41 to continue to move toward the core 31. The top plate 41 will move with the first push rod 43 and the second push rod 44. When the first push rod 43 and the second push rod 44 move, they will move the first top block 32 and the second top block 33 away from the lower fixed plate 21 to completely eject the automobile light distribution mirror 8 from the core 31, realizing the third ejection and demoulding action, and finally completing the demoulding of the automobile light distribution mirror 8.

[0054] After the worker removes the demoulded automobile mirror 8 from the mold, the output shaft of the oil cylinder 42 retracts and the top plate 41 retracts. The top plate 41 retracts first through the second push rod 44 and the second top block 33. After the top plate 41 retracts a certain distance, the top wall of the chute 411 contacts the first push rod 43. Then the top plate 41 moves together with the first push rod 43, the second push rod 44, the first top block 32, and the second top block 33 to reset. Finally, after the top plate 41 and the second top block 33 move to the initial position, the first top block 32 does not completely move to reset, and the end of the first push rod 43 away from the first top block 32 contacts the top wall of the chute 411.

[0055] Then the mold is closed. During the mold closing process, the inclined guide block 132 will be inserted into the inclined groove 341. Under the action of the inclined guide block 132 and the inclined groove 341, the mold closing force will be converted into a force for the molding block 34 to move closer to the core 31, so that the molding block 34 moves closer to the core 31. During this process, the molding block 34 will conflict with the first top block 32 and press the first top block 32 back into the first receiving groove 36, so that the first top block 32 moves and resets. During the movement and reset of the first top block 32, the first top rod 43 and the third top block 52 will also move and reset. After all the components have moved and reset, the injection molding of the next automotive light distribution mirror 8 can be started.

[0056] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. An automobile lens injection molding mold, comprising an upper mold body (1) and a lower mold body (2), wherein the upper mold body (1) comprises an upper fixed plate (11), a hot runner plate (12), and a fixed mold plate (13), wherein a mold cavity (131) is formed on the fixed mold plate (13), wherein the lower mold body (2) comprises a lower fixed plate (21) and a movable mold plate (22), wherein a mold core (31) is formed on the movable mold plate (22), wherein a plurality of first ejector blocks (32) and a plurality of second ejector blocks (33) are slidably connected in the mold core (31), wherein the plurality of first ejector blocks (32) and the plurality of second ejector blocks (33) are used for molding an assembly portion (82), wherein a first driving assembly (4) is further provided on the lower fixed plate (21), wherein the first driving assembly (4) is used for driving the plurality of first ejector blocks (32) and the plurality of second ejector blocks (33) to move so as to eject the injection molded automobile lens (8) from the mold core (31), wherein: The movable plate (22) is slidably connected with a molding block (34) along a direction perpendicular to the mold opening direction of the mold; a chamber (35) for molding the edge wrapping (83) and the assembly portion (82) is formed between the molding block (34), the core (31) and the first top block (32); the molding block (34) presses the first top block (32) into the core (31); an inclined groove (341) is formed on the molding block (34); an inclined guide block (132) for inserting into the inclined groove (341) is provided on the fixed plate (13); the inclined guide block (132) is inserted into the mold closing position; and the inclined guide block (132) is inserted into the mold closing position. The first driving assembly (4) comprises a top plate (41) slidably connected to the lower fixed plate (21), a cylinder (42) disposed on the lower fixed plate (21) and used for driving the top plate (41) to slide, a plurality of first push rods (43) and a plurality of second push rods (44) disposed on the top plate (41), and a plurality of first push rods (43) and a plurality of second push rods (44) disposed on the top plate (41). A push rod (43) is respectively connected to a plurality of first push blocks (32), and a plurality of second push rods (44) are respectively connected to a plurality of second push blocks (33); a slide groove (411) is provided on the top plate (41), and an end of the first push rod (43) away from the first push block (32) is slidably connected in the slide groove (411); a second driving assembly (5) is provided on the movable plate (22), and the second driving assembly (5) is used to drive the first push block (32) to slide; the second driving assembly (5) includes a pull rod (51) provided on the forming block (34); ), a third top block (52) is arranged on the end of the pull rod (51) away from the forming block (34), the end of the pull rod (51) away from the forming block (34) passes through the first top block (32) and extends into the movable template (22), the third top block (52) is located on the end of the pull rod (51) extending into the movable template (22), the first top block (32) is located on the movement path of the third top block (52), and when the pull rod (51) moves, the third top block (52) will conflict with the first top block (32) and drive the first top block (32) to move away from the lower fixed plate (21).

2. The automotive lens injection molding mold according to claim 1, characterized in that: The top plate (41) is provided with a first air channel (71), the first air channel (71) is connected to the slide groove (411), the first top rod (43) is provided with a second air channel (72), the first top block (32) is provided with a third air channel (73), one air channel opening of the second air channel (72) is located in the slide groove (411) and is connected to the first air channel (71), the other air channel opening of the second air channel (72) is connected to the third air channel (73), and the air channel opening of the third air channel (73) faces the core (31).

3. The automotive lens injection molding mold according to claim 2, characterized in that: The core (31) is provided with a first receiving groove (36), the first top block (32) is slidably connected in the first receiving groove (36), an exhaust gap (37) is formed between the first top block (32) and the first receiving groove (36), and the exhaust gap (37) is connected to the third air channel (73) and the chamber one (35).

4. The automotive lens injection molding mold according to claim 1, characterized in that: The movable template (22) is formed by splicing a plurality of inserts (3) together, wherein the plurality of inserts (3) are arranged on a lower fixed plate (21), a core (31) is arranged on the plurality of inserts (3), and a forming block (34) is slidably connected to the plurality of inserts (3).

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